<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:38c5096e-1db6-433e-9985-a8b69c9d2d91,g:51105b0e-91f1-403a-8d95-691f3b13c688-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/Cover" xlink:type="simple" xlink:href="crwd-20240731.xsd#Cover"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_eafe8ea2-832d-4e05-b652-2e29159cd3b5" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_DocumentInformationTable_eafe8ea2-832d-4e05-b652-2e29159cd3b5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_f2d86c26-86bb-4496-9cee-8bfb9761f28d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_eafe8ea2-832d-4e05-b652-2e29159cd3b5" xlink:to="loc_us-gaap_StatementClassOfStockAxis_f2d86c26-86bb-4496-9cee-8bfb9761f28d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_f2d86c26-86bb-4496-9cee-8bfb9761f28d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_f2d86c26-86bb-4496-9cee-8bfb9761f28d" xlink:to="loc_us-gaap_ClassOfStockDomain_f2d86c26-86bb-4496-9cee-8bfb9761f28d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_3d5f41f4-30f7-4312-9006-5e2f1f6b6089" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_f2d86c26-86bb-4496-9cee-8bfb9761f28d" xlink:to="loc_us-gaap_ClassOfStockDomain_3d5f41f4-30f7-4312-9006-5e2f1f6b6089" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_c297cc32-b28f-4428-b9e1-37367a0ad0e1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3d5f41f4-30f7-4312-9006-5e2f1f6b6089" xlink:to="loc_us-gaap_CommonClassAMember_c297cc32-b28f-4428-b9e1-37367a0ad0e1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_31603f2e-d81b-4e15-961f-9a515a5cd6a1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3d5f41f4-30f7-4312-9006-5e2f1f6b6089" xlink:to="loc_us-gaap_CommonClassBMember_31603f2e-d81b-4e15-961f-9a515a5cd6a1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_e0756577-b888-48ee-806f-c94bdc69c11b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_eafe8ea2-832d-4e05-b652-2e29159cd3b5" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_e0756577-b888-48ee-806f-c94bdc69c11b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_e0756577-b888-48ee-806f-c94bdc69c11b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_e0756577-b888-48ee-806f-c94bdc69c11b" xlink:to="loc_us-gaap_EquityComponentDomain_e0756577-b888-48ee-806f-c94bdc69c11b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_ee3be273-3b56-44fa-ba38-36fdf66b33c7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_e0756577-b888-48ee-806f-c94bdc69c11b" xlink:to="loc_us-gaap_EquityComponentDomain_ee3be273-3b56-44fa-ba38-36fdf66b33c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_472f6f29-991b-4433-9ae5-1414786b9ea1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_ee3be273-3b56-44fa-ba38-36fdf66b33c7" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_472f6f29-991b-4433-9ae5-1414786b9ea1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_6eb601bf-b697-425a-be63-1c962f4fe37a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_DocumentType_6eb601bf-b697-425a-be63-1c962f4fe37a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_222f033f-ab1d-4793-83fc-dcbdea91f3f3" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentQuarterlyReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_DocumentQuarterlyReport_222f033f-ab1d-4793-83fc-dcbdea91f3f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_ca375a76-afd5-4312-a265-cafddd1eea20" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_DocumentPeriodEndDate_ca375a76-afd5-4312-a265-cafddd1eea20" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_73ba799b-3da5-493a-916d-2348face0c26" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentTransitionReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_DocumentTransitionReport_73ba799b-3da5-493a-916d-2348face0c26" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_bb639edc-af3c-4259-8327-aa45c630ee79" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityFileNumber_bb639edc-af3c-4259-8327-aa45c630ee79" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_b2c91330-cb95-4e91-83f1-5ac4bba86156" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityRegistrantName_b2c91330-cb95-4e91-83f1-5ac4bba86156" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_9421919a-b364-412e-a21e-9afeab742222" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityIncorporationStateCountryCode_9421919a-b364-412e-a21e-9afeab742222" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_833ca60b-5211-40dc-bf89-50a5394ea6e8" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityTaxIdentificationNumber_833ca60b-5211-40dc-bf89-50a5394ea6e8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_6b97a93b-98cc-4bc4-acb5-a76328fe822e" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityAddressAddressLine1_6b97a93b-98cc-4bc4-acb5-a76328fe822e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_840daff6-316a-431d-ab70-97269a7865f6" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityAddressAddressLine2_840daff6-316a-431d-ab70-97269a7865f6" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_c5b45826-ae2e-43ec-a7a9-56ee8015825e" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityAddressCityOrTown_c5b45826-ae2e-43ec-a7a9-56ee8015825e" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_7393e2fa-a0b3-4d52-bd83-1fe9067f73b7" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityAddressStateOrProvince_7393e2fa-a0b3-4d52-bd83-1fe9067f73b7" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_d2b3fb7d-a7ee-438e-8b43-65309f23c5ee" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityAddressPostalZipCode_d2b3fb7d-a7ee-438e-8b43-65309f23c5ee" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_e349f676-b6b0-4d1f-99ce-60f71b46feb9" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_CityAreaCode_e349f676-b6b0-4d1f-99ce-60f71b46feb9" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_0ebabe4d-9ac8-481f-bbb8-231fc73318c8" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_LocalPhoneNumber_0ebabe4d-9ac8-481f-bbb8-231fc73318c8" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_505c60af-8961-4789-adf2-933e4a756970" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_Security12bTitle_505c60af-8961-4789-adf2-933e4a756970" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_16d972d9-e658-4d74-b5cc-6019e65835e0" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_TradingSymbol_16d972d9-e658-4d74-b5cc-6019e65835e0" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_baeb5270-3a6d-4671-bc5b-f1906fb4d9f4" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_SecurityExchangeName_baeb5270-3a6d-4671-bc5b-f1906fb4d9f4" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_859e4d74-9195-41c8-ae15-8b72a47cfed7" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCurrentReportingStatus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityCurrentReportingStatus_859e4d74-9195-41c8-ae15-8b72a47cfed7" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_92e3a7ec-abf8-45aa-adde-677c012ff088" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityInteractiveDataCurrent_92e3a7ec-abf8-45aa-adde-677c012ff088" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_3215c75c-dc63-4f8f-b538-95c48928d6cd" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFilerCategory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityFilerCategory_3215c75c-dc63-4f8f-b538-95c48928d6cd" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_d325c335-425d-45c8-a0fd-566788b29d4a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntitySmallBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntitySmallBusiness_d325c335-425d-45c8-a0fd-566788b29d4a" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_fccd1305-87d3-4130-b28d-7ce0c88bbc4b" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityEmergingGrowthCompany_fccd1305-87d3-4130-b28d-7ce0c88bbc4b" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_12a5d8bf-2868-4db2-b35f-5e96f2abd47c" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityShellCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityShellCompany_12a5d8bf-2868-4db2-b35f-5e96f2abd47c" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_24a6946f-abc4-48cb-8827-7b6e719bf228" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_24a6946f-abc4-48cb-8827-7b6e719bf228" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_03bb6764-8faf-4c66-86ff-416f89eff695" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_EntityCentralIndexKey_03bb6764-8faf-4c66-86ff-416f89eff695" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_2e14a203-d804-48dc-85a4-f9ddb72655b3" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFiscalYearFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_DocumentFiscalYearFocus_2e14a203-d804-48dc-85a4-f9ddb72655b3" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_7f273538-3c98-4abc-ab70-369ee7ca4f28" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_DocumentFiscalPeriodFocus_7f273538-3c98-4abc-ab70-369ee7ca4f28" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_c7f9e488-871b-46b4-b036-8fb33e5663d5" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_AmendmentFlag_c7f9e488-871b-46b4-b036-8fb33e5663d5" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_f5f3e15f-5cbe-4749-9ba2-e5f21b0c6cc8" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_a845b426-35c7-43de-941c-e3e503d38fc9" xlink:to="loc_dei_CurrentFiscalYearEndDate_f5f3e15f-5cbe-4749-9ba2-e5f21b0c6cc8" xlink:type="arc" order="29"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:type="simple" xlink:href="crwd-20240731.xsd#CondensedConsolidatedBalanceSheetsParenthetical"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_a5004846-1b1f-4d86-9b3c-d4e37e8a85ec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_a4773d7a-f69b-41b4-80f0-15ab2f0e1e4f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_a5004846-1b1f-4d86-9b3c-d4e37e8a85ec" xlink:to="loc_us-gaap_StatementTable_a4773d7a-f69b-41b4-80f0-15ab2f0e1e4f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_aab4d3cf-4bc0-4ad7-a027-3f9976c8fdec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_a4773d7a-f69b-41b4-80f0-15ab2f0e1e4f" xlink:to="loc_us-gaap_StatementClassOfStockAxis_aab4d3cf-4bc0-4ad7-a027-3f9976c8fdec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_aab4d3cf-4bc0-4ad7-a027-3f9976c8fdec_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_aab4d3cf-4bc0-4ad7-a027-3f9976c8fdec" xlink:to="loc_us-gaap_ClassOfStockDomain_aab4d3cf-4bc0-4ad7-a027-3f9976c8fdec_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_7e47b575-b96e-4b2e-971a-8e38f2068e2b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_aab4d3cf-4bc0-4ad7-a027-3f9976c8fdec" xlink:to="loc_us-gaap_ClassOfStockDomain_7e47b575-b96e-4b2e-971a-8e38f2068e2b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_1e22fbc1-be85-4d6e-98a3-626c35867866" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_7e47b575-b96e-4b2e-971a-8e38f2068e2b" xlink:to="loc_us-gaap_CommonClassAMember_1e22fbc1-be85-4d6e-98a3-626c35867866" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_8e0d8676-3f2a-4aef-8893-e0c447577b66" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_7e47b575-b96e-4b2e-971a-8e38f2068e2b" xlink:to="loc_us-gaap_CommonClassBMember_8e0d8676-3f2a-4aef-8893-e0c447577b66" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_5ee2a829-c0c7-4758-9062-aeba8c7dfeba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a5004846-1b1f-4d86-9b3c-d4e37e8a85ec" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_5ee2a829-c0c7-4758-9062-aeba8c7dfeba" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_e5e9a996-3f40-4d79-9f79-5cfd400b9e79" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a5004846-1b1f-4d86-9b3c-d4e37e8a85ec" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_e5e9a996-3f40-4d79-9f79-5cfd400b9e79" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_7d3fcdf9-a5cd-4d5a-9df8-4540b36963f1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a5004846-1b1f-4d86-9b3c-d4e37e8a85ec" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_7d3fcdf9-a5cd-4d5a-9df8-4540b36963f1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_8c0a7a28-4cf7-47c3-8b90-32a89f3082f2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a5004846-1b1f-4d86-9b3c-d4e37e8a85ec" xlink:to="loc_us-gaap_PreferredStockSharesIssued_8c0a7a28-4cf7-47c3-8b90-32a89f3082f2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_22a187cb-6a2e-4781-a4e2-7cbcaa432aa2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a5004846-1b1f-4d86-9b3c-d4e37e8a85ec" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_22a187cb-6a2e-4781-a4e2-7cbcaa432aa2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_b1ead4e3-95dd-4bc1-b719-f302a47f15f7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a5004846-1b1f-4d86-9b3c-d4e37e8a85ec" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_b1ead4e3-95dd-4bc1-b719-f302a47f15f7" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_5fe8e486-6bc6-4050-a446-1f9283c2cf5c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a5004846-1b1f-4d86-9b3c-d4e37e8a85ec" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_5fe8e486-6bc6-4050-a446-1f9283c2cf5c" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_eeb50ee1-94e4-4512-b884-b7c4d1f90c2a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a5004846-1b1f-4d86-9b3c-d4e37e8a85ec" xlink:to="loc_us-gaap_CommonStockSharesIssued_eeb50ee1-94e4-4512-b884-b7c4d1f90c2a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_b991ff1b-cccb-4885-af96-b7e1def0d063" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_a5004846-1b1f-4d86-9b3c-d4e37e8a85ec" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_b991ff1b-cccb-4885-af96-b7e1def0d063" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/CondensedConsolidatedStatementsofOperations" xlink:type="simple" xlink:href="crwd-20240731.xsd#CondensedConsolidatedStatementsofOperations"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/CondensedConsolidatedStatementsofOperations" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_72f894e8-c2f6-4664-aff1-1a277cec2bed" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_StatementTable_72f894e8-c2f6-4664-aff1-1a277cec2bed" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_be338ae7-bdfe-4c5f-966e-9903ac632163" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_72f894e8-c2f6-4664-aff1-1a277cec2bed" xlink:to="loc_srt_ProductOrServiceAxis_be338ae7-bdfe-4c5f-966e-9903ac632163" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_be338ae7-bdfe-4c5f-966e-9903ac632163_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_be338ae7-bdfe-4c5f-966e-9903ac632163" xlink:to="loc_srt_ProductsAndServicesDomain_be338ae7-bdfe-4c5f-966e-9903ac632163_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_b987ae45-56c3-466a-8c3d-640e251dfe6f" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_be338ae7-bdfe-4c5f-966e-9903ac632163" xlink:to="loc_srt_ProductsAndServicesDomain_b987ae45-56c3-466a-8c3d-640e251dfe6f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubscriptionAndCirculationMember_081307e2-4b68-4aa0-8a10-929f54144647" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubscriptionAndCirculationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_b987ae45-56c3-466a-8c3d-640e251dfe6f" xlink:to="loc_us-gaap_SubscriptionAndCirculationMember_081307e2-4b68-4aa0-8a10-929f54144647" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ProfessionalServicesMember_67b52f9a-a0e8-46bb-8d69-332ef188b0d9" xlink:href="crwd-20240731.xsd#crwd_ProfessionalServicesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_b987ae45-56c3-466a-8c3d-640e251dfe6f" xlink:to="loc_crwd_ProfessionalServicesMember_67b52f9a-a0e8-46bb-8d69-332ef188b0d9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_e0c3fe52-fa5f-4567-a315-791a49bfbbae" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenuesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_RevenuesAbstract_e0c3fe52-fa5f-4567-a315-791a49bfbbae" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_00a16421-3990-4a4d-9902-8b337fc96f41" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_e0c3fe52-fa5f-4567-a315-791a49bfbbae" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_00a16421-3990-4a4d-9902-8b337fc96f41" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenueAbstract_f8c87961-f29c-44dd-b2a2-283445de829f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostOfRevenueAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_CostOfRevenueAbstract_f8c87961-f29c-44dd-b2a2-283445de829f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_37ca6f6e-4511-4e88-9f7c-c3637b575d09" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CostOfRevenueAbstract_f8c87961-f29c-44dd-b2a2-283445de829f" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_37ca6f6e-4511-4e88-9f7c-c3637b575d09" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_0b7935c3-47c9-41a8-a524-d801ca85b93b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GrossProfit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_GrossProfit_0b7935c3-47c9-41a8-a524-d801ca85b93b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_621eff64-d79a-43ed-b9a8-365311fe258e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_OperatingExpensesAbstract_621eff64-d79a-43ed-b9a8-365311fe258e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense_d5b41fb9-4877-474d-9084-121a29928bb4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SellingAndMarketingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_621eff64-d79a-43ed-b9a8-365311fe258e" xlink:to="loc_us-gaap_SellingAndMarketingExpense_d5b41fb9-4877-474d-9084-121a29928bb4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_d2a46f09-bffb-434b-809f-07febf7fd024" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_621eff64-d79a-43ed-b9a8-365311fe258e" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_d2a46f09-bffb-434b-809f-07febf7fd024" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_cf52058b-ac2a-43b0-8188-df4af3034739" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_621eff64-d79a-43ed-b9a8-365311fe258e" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_cf52058b-ac2a-43b0-8188-df4af3034739" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_3a5cd607-7a00-4ee5-adca-7bbeb60cce49" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_621eff64-d79a-43ed-b9a8-365311fe258e" xlink:to="loc_us-gaap_OperatingExpenses_3a5cd607-7a00-4ee5-adca-7bbeb60cce49" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_f7fb120a-e030-4349-b1b3-72ca5f10cdd1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_OperatingIncomeLoss_f7fb120a-e030-4349-b1b3-72ca5f10cdd1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseOperating_82e3ba5c-58d3-4de0-9bff-f82a05606b02" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseOperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_InterestExpenseOperating_82e3ba5c-58d3-4de0-9bff-f82a05606b02" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOperating_6b83a263-6483-4f9f-a74d-a0bf8f21cc31" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestIncomeOperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_InterestIncomeOperating_6b83a263-6483-4f9f-a74d-a0bf8f21cc31" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_4022fbe6-4ee1-4a18-a095-8cfa2d508adb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherOperatingIncomeExpenseNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_4022fbe6-4ee1-4a18-a095-8cfa2d508adb" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_0026dec5-dd97-42fd-ae23-7c6ff356c0d2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_0026dec5-dd97-42fd-ae23-7c6ff356c0d2" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_c7b31b73-3ec7-46ea-a7c4-a923a236545d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_c7b31b73-3ec7-46ea-a7c4-a923a236545d" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_d1849437-7d88-4800-b413-1f02e1fe06ea" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_ProfitLoss_d1849437-7d88-4800-b413-1f02e1fe06ea" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_61f22bbc-a553-4346-8e1d-689607c5006f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_61f22bbc-a553-4346-8e1d-689607c5006f" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_d863b459-f209-4d12-85ac-7405d0f80aa5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_NetIncomeLoss_d863b459-f209-4d12-85ac-7405d0f80aa5" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareReconciliationAbstract_fd9b1280-ade2-4ea3-844d-5dc346f88d1e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EarningsPerShareReconciliationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_EarningsPerShareReconciliationAbstract_fd9b1280-ade2-4ea3-844d-5dc346f88d1e" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_80ca7fe7-1a8d-48e9-86a7-c84534ee1837" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareReconciliationAbstract_fd9b1280-ade2-4ea3-844d-5dc346f88d1e" xlink:to="loc_us-gaap_EarningsPerShareBasic_80ca7fe7-1a8d-48e9-86a7-c84534ee1837" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_0e9bd99f-6ddf-4bed-bd16-86b70470533d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareReconciliationAbstract_fd9b1280-ade2-4ea3-844d-5dc346f88d1e" xlink:to="loc_us-gaap_EarningsPerShareDiluted_0e9bd99f-6ddf-4bed-bd16-86b70470533d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_eeca75af-d83e-4c93-af33-d0d8c1c3f266" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c76f7387-1bca-415b-b9f2-0421d912b8ad" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_eeca75af-d83e-4c93-af33-d0d8c1c3f266" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_7d08ed47-2cd2-45a7-9494-7ea343903beb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_eeca75af-d83e-4c93-af33-d0d8c1c3f266" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_7d08ed47-2cd2-45a7-9494-7ea343903beb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_3295d4a6-8e6e-4454-99d4-16e35763b8e7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_eeca75af-d83e-4c93-af33-d0d8c1c3f266" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_3295d4a6-8e6e-4454-99d4-16e35763b8e7" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/CondensedConsolidatedStatementsofStockholdersEquity" xlink:type="simple" xlink:href="crwd-20240731.xsd#CondensedConsolidatedStatementsofStockholdersEquity"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/CondensedConsolidatedStatementsofStockholdersEquity" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_14379d40-e2dd-459f-8baf-df7e537a4eeb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_7a7f62cb-2287-47b4-ad60-6cb2d4329db1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_14379d40-e2dd-459f-8baf-df7e537a4eeb" xlink:to="loc_us-gaap_StatementTable_7a7f62cb-2287-47b4-ad60-6cb2d4329db1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_5aaa7aa9-4bf5-4797-b39b-5df3f2c5b355" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_7a7f62cb-2287-47b4-ad60-6cb2d4329db1" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_5aaa7aa9-4bf5-4797-b39b-5df3f2c5b355" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_5aaa7aa9-4bf5-4797-b39b-5df3f2c5b355_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_5aaa7aa9-4bf5-4797-b39b-5df3f2c5b355" xlink:to="loc_us-gaap_EquityComponentDomain_5aaa7aa9-4bf5-4797-b39b-5df3f2c5b355_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_9cb0e10f-47d5-417c-b27f-7324d6f4bde2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_5aaa7aa9-4bf5-4797-b39b-5df3f2c5b355" xlink:to="loc_us-gaap_EquityComponentDomain_9cb0e10f-47d5-417c-b27f-7324d6f4bde2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_3e83888f-775e-48e8-8c59-0a69f9ec878f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_9cb0e10f-47d5-417c-b27f-7324d6f4bde2" xlink:to="loc_us-gaap_CommonStockMember_3e83888f-775e-48e8-8c59-0a69f9ec878f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_3cbab405-a940-4a95-a361-0eeddc0ce06e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_9cb0e10f-47d5-417c-b27f-7324d6f4bde2" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_3cbab405-a940-4a95-a361-0eeddc0ce06e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_b8c1cdad-5713-46c4-97fb-2d29d16b1d6c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_9cb0e10f-47d5-417c-b27f-7324d6f4bde2" xlink:to="loc_us-gaap_RetainedEarningsMember_b8c1cdad-5713-46c4-97fb-2d29d16b1d6c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_566728aa-658b-46a4-a499-6e220b1282d6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_9cb0e10f-47d5-417c-b27f-7324d6f4bde2" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_566728aa-658b-46a4-a499-6e220b1282d6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_3f49b30e-cce2-4cad-958a-e646179eecf8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NoncontrollingInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_9cb0e10f-47d5-417c-b27f-7324d6f4bde2" xlink:to="loc_us-gaap_NoncontrollingInterestMember_3f49b30e-cce2-4cad-958a-e646179eecf8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_14379d40-e2dd-459f-8baf-df7e537a4eeb" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesOutstanding_124cb658-6315-4c06-b365-1ad1511f2526" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_SharesOutstanding_124cb658-6315-4c06-b365-1ad1511f2526" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_39d63d10-2403-48f1-a02b-dd5b55d56866" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_39d63d10-2403-48f1-a02b-dd5b55d56866" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_2688b1d6-c6a5-4dfd-b5ab-333416913874" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_2688b1d6-c6a5-4dfd-b5ab-333416913874" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_5181ee82-58b7-455b-99a4-10e9e85d91e1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_5181ee82-58b7-455b-99a4-10e9e85d91e1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_21bedb6e-40ca-48d5-ab7b-7c4724bef2a2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_21bedb6e-40ca-48d5-ab7b-7c4724bef2a2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_fe9af212-4a46-4ade-847c-7a874477f615" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_fe9af212-4a46-4ade-847c-7a874477f615" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_2468d76a-0e9f-4710-9007-482e181a7bbf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_2468d76a-0e9f-4710-9007-482e181a7bbf" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_b3c76ade-18e2-463c-accc-5094d8c4e52b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_b3c76ade-18e2-463c-accc-5094d8c4e52b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_6f2e351c-076f-4542-af67-babc5114a056" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_6f2e351c-076f-4542-af67-babc5114a056" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_83eb8fde-0cc3-4192-91e4-83b6df774372" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_83eb8fde-0cc3-4192-91e4-83b6df774372" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross_8a69e2ff-e0bb-4d22-8a11-285c42aa2c66" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross_8a69e2ff-e0bb-4d22-8a11-285c42aa2c66" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross_65fa9768-8162-486d-9754-bc1a91eb3853" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross_65fa9768-8162-486d-9754-bc1a91eb3853" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_553cd326-16cb-4c2a-9849-2f80b4c853d1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_553cd326-16cb-4c2a-9849-2f80b4c853d1" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_AdjustmentsToAdditionalPaidInCapitalCapitalizedShareBasedCompensationRequisiteServicePeriodRecognitionValue_deeb9e0e-7301-4b8b-b948-3bf88e3d9f33" xlink:href="crwd-20240731.xsd#crwd_AdjustmentsToAdditionalPaidInCapitalCapitalizedShareBasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_crwd_AdjustmentsToAdditionalPaidInCapitalCapitalizedShareBasedCompensationRequisiteServicePeriodRecognitionValue_deeb9e0e-7301-4b8b-b948-3bf88e3d9f33" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_AdjustmentsToAdditionalPaidInCapitalFairValueOfReplacementEquityAwardsAttributableToPreAcquisitionService_ed8e15ec-425a-497f-bf77-7f05811cd617" xlink:href="crwd-20240731.xsd#crwd_AdjustmentsToAdditionalPaidInCapitalFairValueOfReplacementEquityAwardsAttributableToPreAcquisitionService"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_crwd_AdjustmentsToAdditionalPaidInCapitalFairValueOfReplacementEquityAwardsAttributableToPreAcquisitionService_ed8e15ec-425a-497f-bf77-7f05811cd617" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_ff6305dd-d4df-48b8-aef5-01a3f34c8746" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_ProfitLoss_ff6305dd-d4df-48b8-aef5-01a3f34c8746" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_NoncontrollingInterestIncreaseFromContribution_9de28dc0-78b3-461e-8594-2d270df72194" xlink:href="crwd-20240731.xsd#crwd_NoncontrollingInterestIncreaseFromContribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_crwd_NoncontrollingInterestIncreaseFromContribution_9de28dc0-78b3-461e-8594-2d270df72194" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_271aa5ee-b338-42ba-9076-cd1f03e85cec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_e8cfc498-56ce-45ef-8297-8f9957808519" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_271aa5ee-b338-42ba-9076-cd1f03e85cec" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesOutstanding_f77b1f40-432c-4ea4-b5e0-9eadeaa55437" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_812a30d5-8505-411b-bcbb-a7520cfb07d6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/InvestmentsandFairValueMeasurementsFinancialAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#InvestmentsandFairValueMeasurementsFinancialAssetsandLiabilitiesDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/InvestmentsandFairValueMeasurementsFinancialAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9db35155-e08d-4807-86f0-d994491354e1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_34f92c64-0ff8-4c25-8706-88a489f7917f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9db35155-e08d-4807-86f0-d994491354e1" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_34f92c64-0ff8-4c25-8706-88a489f7917f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_0240c3e6-557c-4df1-a4ae-aa185403da4a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_34f92c64-0ff8-4c25-8706-88a489f7917f" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_0240c3e6-557c-4df1-a4ae-aa185403da4a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_0240c3e6-557c-4df1-a4ae-aa185403da4a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_0240c3e6-557c-4df1-a4ae-aa185403da4a" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_0240c3e6-557c-4df1-a4ae-aa185403da4a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_091b4090-e2d4-4c42-84cd-9bc5a8f1cf2c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_0240c3e6-557c-4df1-a4ae-aa185403da4a" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_091b4090-e2d4-4c42-84cd-9bc5a8f1cf2c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_df85b360-0469-4ecc-9c45-8f862210b6cb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_091b4090-e2d4-4c42-84cd-9bc5a8f1cf2c" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_df85b360-0469-4ecc-9c45-8f862210b6cb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_71593ef9-172e-4e5a-9f0a-fcb74246d554" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_34f92c64-0ff8-4c25-8706-88a489f7917f" xlink:to="loc_us-gaap_FinancialInstrumentAxis_71593ef9-172e-4e5a-9f0a-fcb74246d554" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_71593ef9-172e-4e5a-9f0a-fcb74246d554_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_71593ef9-172e-4e5a-9f0a-fcb74246d554" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_71593ef9-172e-4e5a-9f0a-fcb74246d554_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_cc431f4a-ea03-458b-948b-de8ac0e72a99" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_71593ef9-172e-4e5a-9f0a-fcb74246d554" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_cc431f4a-ea03-458b-948b-de8ac0e72a99" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_abd58d1a-1339-4f99-93b0-141b386514da" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_cc431f4a-ea03-458b-948b-de8ac0e72a99" xlink:to="loc_us-gaap_MoneyMarketFundsMember_abd58d1a-1339-4f99-93b0-141b386514da" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_1d7d2ef7-ff9f-4db8-9b14-eafa4546232a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_USTreasurySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_cc431f4a-ea03-458b-948b-de8ac0e72a99" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_1d7d2ef7-ff9f-4db8-9b14-eafa4546232a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_DeferredCompensationInvestmentsMember_7828f4e4-e8a0-4383-b4ba-8faa51f8d05b" xlink:href="crwd-20240731.xsd#crwd_DeferredCompensationInvestmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_cc431f4a-ea03-458b-948b-de8ac0e72a99" xlink:to="loc_crwd_DeferredCompensationInvestmentsMember_7828f4e4-e8a0-4383-b4ba-8faa51f8d05b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5dd8d579-63e2-4a3a-9bf7-69cf753200f3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_34f92c64-0ff8-4c25-8706-88a489f7917f" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5dd8d579-63e2-4a3a-9bf7-69cf753200f3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_5dd8d579-63e2-4a3a-9bf7-69cf753200f3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5dd8d579-63e2-4a3a-9bf7-69cf753200f3" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_5dd8d579-63e2-4a3a-9bf7-69cf753200f3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f24fc50c-3cf2-4966-ac06-b15695a245f4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5dd8d579-63e2-4a3a-9bf7-69cf753200f3" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f24fc50c-3cf2-4966-ac06-b15695a245f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_c64c3a8a-e46c-4af0-bfca-48a1075c5a00" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f24fc50c-3cf2-4966-ac06-b15695a245f4" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_c64c3a8a-e46c-4af0-bfca-48a1075c5a00" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_86b0d194-2e1c-4204-9911-2ef9388dc265" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f24fc50c-3cf2-4966-ac06-b15695a245f4" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_86b0d194-2e1c-4204-9911-2ef9388dc265" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_77ab991e-a4b6-4523-997d-732d1fe4d8fb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_f24fc50c-3cf2-4966-ac06-b15695a245f4" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_77ab991e-a4b6-4523-997d-732d1fe4d8fb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_2553e5dc-cccd-44f6-9170-3e102f3fdf69" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_9db35155-e08d-4807-86f0-d994491354e1" xlink:to="loc_us-gaap_AssetsFairValueDisclosureAbstract_2553e5dc-cccd-44f6-9170-3e102f3fdf69" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_d2b8e349-582c-4686-a29d-076021ceb828" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_2553e5dc-cccd-44f6-9170-3e102f3fdf69" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_d2b8e349-582c-4686-a29d-076021ceb828" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_b81f9b12-1182-46b7-848d-ece19e8f5f5e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShortTermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_2553e5dc-cccd-44f6-9170-3e102f3fdf69" xlink:to="loc_us-gaap_ShortTermInvestments_b81f9b12-1182-46b7-848d-ece19e8f5f5e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsFairValueDisclosure_b12107b8-cc9b-45ae-b889-e967be0bb625" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_2553e5dc-cccd-44f6-9170-3e102f3fdf69" xlink:to="loc_us-gaap_OtherAssetsFairValueDisclosure_b12107b8-cc9b-45ae-b889-e967be0bb625" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_bbc7be21-218f-4c7f-aa11-08e8091e0f00" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_2553e5dc-cccd-44f6-9170-3e102f3fdf69" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_bbc7be21-218f-4c7f-aa11-08e8091e0f00" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/InvestmentsandFairValueMeasurementsCarryingValuesforPubliclyTradedandPrivatelyHeldEquitySecuritiesDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#InvestmentsandFairValueMeasurementsCarryingValuesforPubliclyTradedandPrivatelyHeldEquitySecuritiesDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/InvestmentsandFairValueMeasurementsCarryingValuesforPubliclyTradedandPrivatelyHeldEquitySecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4f9d6eaf-af64-47a5-8bc5-b1205634384b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_d92dae48-2300-49c7-a9f0-904ab7a914cb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4f9d6eaf-af64-47a5-8bc5-b1205634384b" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_d92dae48-2300-49c7-a9f0-904ab7a914cb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_f18ef5b3-8a5b-4f4e-ae6f-f375751339f8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_d92dae48-2300-49c7-a9f0-904ab7a914cb" xlink:to="loc_us-gaap_FinancialInstrumentAxis_f18ef5b3-8a5b-4f4e-ae6f-f375751339f8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_f18ef5b3-8a5b-4f4e-ae6f-f375751339f8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_f18ef5b3-8a5b-4f4e-ae6f-f375751339f8" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_f18ef5b3-8a5b-4f4e-ae6f-f375751339f8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_6a9fa92d-f96c-4c40-80a6-5c3c5277b617" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_f18ef5b3-8a5b-4f4e-ae6f-f375751339f8" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_6a9fa92d-f96c-4c40-80a6-5c3c5277b617" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_PrivatelyHeldEquitySecuritiesMember_3177c7cf-69e5-4c58-9397-aa6223156e3a" xlink:href="crwd-20240731.xsd#crwd_PrivatelyHeldEquitySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_6a9fa92d-f96c-4c40-80a6-5c3c5277b617" xlink:to="loc_crwd_PrivatelyHeldEquitySecuritiesMember_3177c7cf-69e5-4c58-9397-aa6223156e3a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_PrivatelyHeldDebtAndOtherSecuritiesMember_d2262984-d88d-40bc-8d88-f8fc06069259" xlink:href="crwd-20240731.xsd#crwd_PrivatelyHeldDebtAndOtherSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_6a9fa92d-f96c-4c40-80a6-5c3c5277b617" xlink:to="loc_crwd_PrivatelyHeldDebtAndOtherSecuritiesMember_d2262984-d88d-40bc-8d88-f8fc06069259" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_OtherLongTermInvestmentsCost_f7d8f6c5-7eef-43fa-b4dc-08d5389fbd83" xlink:href="crwd-20240731.xsd#crwd_OtherLongTermInvestmentsCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4f9d6eaf-af64-47a5-8bc5-b1205634384b" xlink:to="loc_crwd_OtherLongTermInvestmentsCost_f7d8f6c5-7eef-43fa-b4dc-08d5389fbd83" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_OtherLongTermInvestmentsGainLoss_77cd71f2-83ff-45e3-babb-b4692b3b2d3d" xlink:href="crwd-20240731.xsd#crwd_OtherLongTermInvestmentsGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4f9d6eaf-af64-47a5-8bc5-b1205634384b" xlink:to="loc_crwd_OtherLongTermInvestmentsGainLoss_77cd71f2-83ff-45e3-babb-b4692b3b2d3d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLongTermInvestments_e419cec5-839d-4493-905b-01e9cdee697d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLongTermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4f9d6eaf-af64-47a5-8bc5-b1205634384b" xlink:to="loc_us-gaap_OtherLongTermInvestments_e419cec5-839d-4493-905b-01e9cdee697d" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/InvestmentsandFairValueMeasurementsAdditionalInformationDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#InvestmentsandFairValueMeasurementsAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/InvestmentsandFairValueMeasurementsAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d9b8c5f8-a4ae-499d-9d6c-ba88b4dae644" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_3379d7de-ff59-4a33-8e02-f5f7cd4098e3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d9b8c5f8-a4ae-499d-9d6c-ba88b4dae644" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_3379d7de-ff59-4a33-8e02-f5f7cd4098e3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_d03703fe-dba3-418c-a0f0-f7932cb97a7b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_3379d7de-ff59-4a33-8e02-f5f7cd4098e3" xlink:to="loc_us-gaap_FinancialInstrumentAxis_d03703fe-dba3-418c-a0f0-f7932cb97a7b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_d03703fe-dba3-418c-a0f0-f7932cb97a7b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_d03703fe-dba3-418c-a0f0-f7932cb97a7b" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_d03703fe-dba3-418c-a0f0-f7932cb97a7b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_1f4c5c59-1c95-472f-bde4-e476eb4c6096" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_d03703fe-dba3-418c-a0f0-f7932cb97a7b" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_1f4c5c59-1c95-472f-bde4-e476eb4c6096" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_PrivatelyHeldEquitySecuritiesMember_051f2c91-1bd4-41c6-82f6-8c5de3a8c5d3" xlink:href="crwd-20240731.xsd#crwd_PrivatelyHeldEquitySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_1f4c5c59-1c95-472f-bde4-e476eb4c6096" xlink:to="loc_crwd_PrivatelyHeldEquitySecuritiesMember_051f2c91-1bd4-41c6-82f6-8c5de3a8c5d3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_OtherLongTermInvestmentsGainLoss_6fbdc63a-3183-4b67-a8c4-9bf28d6923ea" xlink:href="crwd-20240731.xsd#crwd_OtherLongTermInvestmentsGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d9b8c5f8-a4ae-499d-9d6c-ba88b4dae644" xlink:to="loc_crwd_OtherLongTermInvestmentsGainLoss_6fbdc63a-3183-4b67-a8c4-9bf28d6923ea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount_e05bd4e4-310c-49cd-a66e-85914cbab8fc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d9b8c5f8-a4ae-499d-9d6c-ba88b4dae644" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount_e05bd4e4-310c-49cd-a66e-85914cbab8fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount_1a986d07-8994-4307-ae14-75b8112da3f4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d9b8c5f8-a4ae-499d-9d6c-ba88b4dae644" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount_1a986d07-8994-4307-ae14-75b8112da3f4" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#BalanceSheetComponentsPropertyandEquipmentNetDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_ec44c7f8-7952-4b42-ab28-dbd876bdd599" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_90434ec5-f7af-4ebd-8ec8-6eff69172aaa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_ec44c7f8-7952-4b42-ab28-dbd876bdd599" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_90434ec5-f7af-4ebd-8ec8-6eff69172aaa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_485a8954-5c29-478e-b869-e4f54039730e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_90434ec5-f7af-4ebd-8ec8-6eff69172aaa" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_485a8954-5c29-478e-b869-e4f54039730e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_485a8954-5c29-478e-b869-e4f54039730e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_485a8954-5c29-478e-b869-e4f54039730e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_485a8954-5c29-478e-b869-e4f54039730e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_20d4d6ba-d7f3-46a0-8da4-900c970b9057" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_485a8954-5c29-478e-b869-e4f54039730e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_20d4d6ba-d7f3-46a0-8da4-900c970b9057" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_DataCenterAndOtherComputerEquipmentMember_9626453c-1f29-4918-9221-393e75c3b30a" xlink:href="crwd-20240731.xsd#crwd_DataCenterAndOtherComputerEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_20d4d6ba-d7f3-46a0-8da4-900c970b9057" xlink:to="loc_crwd_DataCenterAndOtherComputerEquipmentMember_9626453c-1f29-4918-9221-393e75c3b30a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_10292396-5f94-4b48-8349-0f7b09c8d9cb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SoftwareDevelopmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_20d4d6ba-d7f3-46a0-8da4-900c970b9057" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_10292396-5f94-4b48-8349-0f7b09c8d9cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_2f541c83-d793-4410-8ac1-5b171c90c2cc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LeaseholdImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_20d4d6ba-d7f3-46a0-8da4-900c970b9057" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_2f541c83-d793-4410-8ac1-5b171c90c2cc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_PurchasedSoftwareMember_3820d7cc-f11e-4f2b-88fd-0278d1bd7659" xlink:href="crwd-20240731.xsd#crwd_PurchasedSoftwareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_20d4d6ba-d7f3-46a0-8da4-900c970b9057" xlink:to="loc_crwd_PurchasedSoftwareMember_3820d7cc-f11e-4f2b-88fd-0278d1bd7659" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_FurnitureAndEquipmentMember_cfae2db8-7999-4fed-aef9-96482c945bb9" xlink:href="crwd-20240731.xsd#crwd_FurnitureAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_20d4d6ba-d7f3-46a0-8da4-900c970b9057" xlink:to="loc_crwd_FurnitureAndEquipmentMember_cfae2db8-7999-4fed-aef9-96482c945bb9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_d5798a72-9fbf-4173-ac3f-64527ab57a4e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_20d4d6ba-d7f3-46a0-8da4-900c970b9057" xlink:to="loc_us-gaap_ConstructionInProgressMember_d5798a72-9fbf-4173-ac3f-64527ab57a4e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_6d6b0fa4-63ef-4e74-a12c-309c25b2a062" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_ec44c7f8-7952-4b42-ab28-dbd876bdd599" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_6d6b0fa4-63ef-4e74-a12c-309c25b2a062" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_3d17d236-f364-4f5e-bd08-07828aa034ee" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_ec44c7f8-7952-4b42-ab28-dbd876bdd599" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_3d17d236-f364-4f5e-bd08-07828aa034ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_b23279b5-81f5-4c9b-93a8-4693ba61f88f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_ec44c7f8-7952-4b42-ab28-dbd876bdd599" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_b23279b5-81f5-4c9b-93a8-4693ba61f88f" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/BalanceSheetComponentsAdditionalInformationDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#BalanceSheetComponentsAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/BalanceSheetComponentsAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1f678268-17f2-4fcd-ae7c-0a8aedc9e2dc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_6221392e-7794-467a-9dbe-417515de81e6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1f678268-17f2-4fcd-ae7c-0a8aedc9e2dc" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_6221392e-7794-467a-9dbe-417515de81e6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0e146568-9a62-421d-a201-6f76c6fe0fb7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_6221392e-7794-467a-9dbe-417515de81e6" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0e146568-9a62-421d-a201-6f76c6fe0fb7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0e146568-9a62-421d-a201-6f76c6fe0fb7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0e146568-9a62-421d-a201-6f76c6fe0fb7" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0e146568-9a62-421d-a201-6f76c6fe0fb7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_506d1976-6e7b-49da-ba71-836afe677bdc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0e146568-9a62-421d-a201-6f76c6fe0fb7" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_506d1976-6e7b-49da-ba71-836afe677bdc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_DataCenterAndOtherComputerEquipmentMember_34c1a6d3-17d2-4a99-ab66-1133bc044cf9" xlink:href="crwd-20240731.xsd#crwd_DataCenterAndOtherComputerEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_506d1976-6e7b-49da-ba71-836afe677bdc" xlink:to="loc_crwd_DataCenterAndOtherComputerEquipmentMember_34c1a6d3-17d2-4a99-ab66-1133bc044cf9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_d1e2fb28-4c3f-43ed-813f-ccef5946bd53" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_6221392e-7794-467a-9dbe-417515de81e6" xlink:to="loc_srt_RangeAxis_d1e2fb28-4c3f-43ed-813f-ccef5946bd53" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_d1e2fb28-4c3f-43ed-813f-ccef5946bd53_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_d1e2fb28-4c3f-43ed-813f-ccef5946bd53" xlink:to="loc_srt_RangeMember_d1e2fb28-4c3f-43ed-813f-ccef5946bd53_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_c0a10ac9-207a-420d-9abb-00f84acd1c50" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_d1e2fb28-4c3f-43ed-813f-ccef5946bd53" xlink:to="loc_srt_RangeMember_c0a10ac9-207a-420d-9abb-00f84acd1c50" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_cb1e53c1-4146-4d35-9514-eba06417ac8c" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_c0a10ac9-207a-420d-9abb-00f84acd1c50" xlink:to="loc_srt_MinimumMember_cb1e53c1-4146-4d35-9514-eba06417ac8c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_55e1bbaf-97aa-4289-b4ad-dc6d9dc5ab7d" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_c0a10ac9-207a-420d-9abb-00f84acd1c50" xlink:to="loc_srt_MaximumMember_55e1bbaf-97aa-4289-b4ad-dc6d9dc5ab7d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAdditions_676612a5-fdfc-410d-832c-edcc0196499c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentAdditions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1f678268-17f2-4fcd-ae7c-0a8aedc9e2dc" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAdditions_676612a5-fdfc-410d-832c-edcc0196499c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_DepreciationAndAmortizationExcludingIntangibleAssetsAndDeferredContractAcquisitionCostsLessLossOnDisposalOfFixedAssets_e57343ea-c5f8-4808-9d67-1d2472766f56" xlink:href="crwd-20240731.xsd#crwd_DepreciationAndAmortizationExcludingIntangibleAssetsAndDeferredContractAcquisitionCostsLessLossOnDisposalOfFixedAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1f678268-17f2-4fcd-ae7c-0a8aedc9e2dc" xlink:to="loc_crwd_DepreciationAndAmortizationExcludingIntangibleAssetsAndDeferredContractAcquisitionCostsLessLossOnDisposalOfFixedAssets_e57343ea-c5f8-4808-9d67-1d2472766f56" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_e79e3ea0-152b-44d2-8e55-6d2720694e7c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1f678268-17f2-4fcd-ae7c-0a8aedc9e2dc" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_e79e3ea0-152b-44d2-8e55-6d2720694e7c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedComputerSoftwareAdditions_84e67bfa-2ac6-4c7d-ae9e-470f56e28fa2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CapitalizedComputerSoftwareAdditions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1f678268-17f2-4fcd-ae7c-0a8aedc9e2dc" xlink:to="loc_us-gaap_CapitalizedComputerSoftwareAdditions_84e67bfa-2ac6-4c7d-ae9e-470f56e28fa2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedComputerSoftwareAmortization1_f3b5efb3-820d-4252-8c50-33c33861193d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CapitalizedComputerSoftwareAmortization1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1f678268-17f2-4fcd-ae7c-0a8aedc9e2dc" xlink:to="loc_us-gaap_CapitalizedComputerSoftwareAmortization1_f3b5efb3-820d-4252-8c50-33c33861193d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedComputerSoftwareNet_7dd69724-f769-447c-97a5-5e736bd6f9e4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CapitalizedComputerSoftwareNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1f678268-17f2-4fcd-ae7c-0a8aedc9e2dc" xlink:to="loc_us-gaap_CapitalizedComputerSoftwareNet_7dd69724-f769-447c-97a5-5e736bd6f9e4" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_94629176-7557-4206-8f52-e81deac9b8a8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1f678268-17f2-4fcd-ae7c-0a8aedc9e2dc" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_94629176-7557-4206-8f52-e81deac9b8a8" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_7c3e3080-5e39-4e4c-ad33-3b3ec1ef6368" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_1f678268-17f2-4fcd-ae7c-0a8aedc9e2dc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_7c3e3080-5e39-4e4c-ad33-3b3ec1ef6368" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/BalanceSheetComponentsIntangibleAssetsNetDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#BalanceSheetComponentsIntangibleAssetsNetDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/BalanceSheetComponentsIntangibleAssetsNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_c2a79ae0-4684-483d-a804-4310d6d0944e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_0c36dc86-5540-4cdd-9f56-8a5486757c08" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_c2a79ae0-4684-483d-a804-4310d6d0944e" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_0c36dc86-5540-4cdd-9f56-8a5486757c08" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_4359124c-00bc-4ec6-a472-bd942f60ee16" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_0c36dc86-5540-4cdd-9f56-8a5486757c08" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_4359124c-00bc-4ec6-a472-bd942f60ee16" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_4359124c-00bc-4ec6-a472-bd942f60ee16_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_4359124c-00bc-4ec6-a472-bd942f60ee16" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_4359124c-00bc-4ec6-a472-bd942f60ee16_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_8769f5cf-98ff-47c6-bdb2-577fff4f1e96" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_4359124c-00bc-4ec6-a472-bd942f60ee16" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_8769f5cf-98ff-47c6-bdb2-577fff4f1e96" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_94fb7d90-2bd0-4681-921f-78bba51a0268" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_8769f5cf-98ff-47c6-bdb2-577fff4f1e96" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_94fb7d90-2bd0-4681-921f-78bba51a0268" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_cf07beb5-81c4-4186-be2d-2bbb9d866a4c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_8769f5cf-98ff-47c6-bdb2-577fff4f1e96" xlink:to="loc_us-gaap_CustomerRelationshipsMember_cf07beb5-81c4-4186-be2d-2bbb9d866a4c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIntangibleAssetsMember_1ba44191-6286-4ec7-980a-2f6efa966d73" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherIntangibleAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_8769f5cf-98ff-47c6-bdb2-577fff4f1e96" xlink:to="loc_us-gaap_OtherIntangibleAssetsMember_1ba44191-6286-4ec7-980a-2f6efa966d73" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_cb05bf6b-4d1f-4828-8443-3afcbef6cb23" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_c2a79ae0-4684-483d-a804-4310d6d0944e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_cb05bf6b-4d1f-4828-8443-3afcbef6cb23" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_6797f1e0-07fc-4eeb-8f46-5155f31db8ec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_c2a79ae0-4684-483d-a804-4310d6d0944e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_6797f1e0-07fc-4eeb-8f46-5155f31db8ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_763f3005-b238-415d-bca8-7a224a8fc644" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_c2a79ae0-4684-483d-a804-4310d6d0944e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_763f3005-b238-415d-bca8-7a224a8fc644" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_222ff07e-7cc1-4d72-b3ac-5e04f219f5bb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_c2a79ae0-4684-483d-a804-4310d6d0944e" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_222ff07e-7cc1-4d72-b3ac-5e04f219f5bb" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/BalanceSheetComponentsGoodwillRollforwardDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#BalanceSheetComponentsGoodwillRollforwardDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/BalanceSheetComponentsGoodwillRollforwardDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillLineItems_94c72bee-b56a-4d68-9501-d5a7cb8cd9c1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GoodwillLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_4c87bf92-ca53-496c-9665-3b47e5772c8a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfGoodwillTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems_94c72bee-b56a-4d68-9501-d5a7cb8cd9c1" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_4c87bf92-ca53-496c-9665-3b47e5772c8a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_0886aef4-39ce-4d71-8d74-e2f768c0bfbf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_4c87bf92-ca53-496c-9665-3b47e5772c8a" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_0886aef4-39ce-4d71-8d74-e2f768c0bfbf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0886aef4-39ce-4d71-8d74-e2f768c0bfbf_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_0886aef4-39ce-4d71-8d74-e2f768c0bfbf" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0886aef4-39ce-4d71-8d74-e2f768c0bfbf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_be891de7-baee-4ecf-ab0b-7c11edd58af4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_0886aef4-39ce-4d71-8d74-e2f768c0bfbf" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_be891de7-baee-4ecf-ab0b-7c11edd58af4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_BionicMember_55836f22-9860-407b-b94e-ab3e671dce2a" xlink:href="crwd-20240731.xsd#crwd_BionicMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_be891de7-baee-4ecf-ab0b-7c11edd58af4" xlink:to="loc_crwd_BionicMember_55836f22-9860-407b-b94e-ab3e671dce2a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillRollForward_0279cc4e-5807-46af-9498-9ae3b17edd92" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GoodwillRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_94c72bee-b56a-4d68-9501-d5a7cb8cd9c1" xlink:to="loc_us-gaap_GoodwillRollForward_0279cc4e-5807-46af-9498-9ae3b17edd92" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_206075ef-4d46-4d59-9553-c4ba5fc48092" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_0279cc4e-5807-46af-9498-9ae3b17edd92" xlink:to="loc_us-gaap_Goodwill_206075ef-4d46-4d59-9553-c4ba5fc48092" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_5da550e0-04ba-4839-a0df-f8477e56fdd9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GoodwillAcquiredDuringPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_0279cc4e-5807-46af-9498-9ae3b17edd92" xlink:to="loc_us-gaap_GoodwillAcquiredDuringPeriod_5da550e0-04ba-4839-a0df-f8477e56fdd9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_65e50d52-b01a-4329-a5bf-37da19271c9e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GoodwillForeignCurrencyTranslationGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_0279cc4e-5807-46af-9498-9ae3b17edd92" xlink:to="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_65e50d52-b01a-4329-a5bf-37da19271c9e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_16f191d3-b266-4e8d-8f25-b0263e4b9fd2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Goodwill"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/DebtDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#DebtDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/DebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_6fad7a64-2b0b-4b9f-8cbd-e84e09914e49" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_6fad7a64-2b0b-4b9f-8cbd-e84e09914e49" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_4a063a5f-861e-4e43-ba4c-8adb131e888e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_6fad7a64-2b0b-4b9f-8cbd-e84e09914e49" xlink:to="loc_us-gaap_CreditFacilityAxis_4a063a5f-861e-4e43-ba4c-8adb131e888e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_4a063a5f-861e-4e43-ba4c-8adb131e888e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_4a063a5f-861e-4e43-ba4c-8adb131e888e" xlink:to="loc_us-gaap_CreditFacilityDomain_4a063a5f-861e-4e43-ba4c-8adb131e888e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_477893fb-23b3-48af-be01-c507ad2f25d3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_4a063a5f-861e-4e43-ba4c-8adb131e888e" xlink:to="loc_us-gaap_CreditFacilityDomain_477893fb-23b3-48af-be01-c507ad2f25d3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_798e977a-c7f7-4f06-a737-c3f8e7ae6ec7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_477893fb-23b3-48af-be01-c507ad2f25d3" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_798e977a-c7f7-4f06-a737-c3f8e7ae6ec7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LetterOfCreditMember_71f82b92-0d7a-4efe-9b7a-69b0124d80af" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LetterOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_477893fb-23b3-48af-be01-c507ad2f25d3" xlink:to="loc_us-gaap_LetterOfCreditMember_71f82b92-0d7a-4efe-9b7a-69b0124d80af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_SwinglineFacilityMember_ae18304d-1a51-4316-9388-3b89aa32dd60" xlink:href="crwd-20240731.xsd#crwd_SwinglineFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_477893fb-23b3-48af-be01-c507ad2f25d3" xlink:to="loc_crwd_SwinglineFacilityMember_ae18304d-1a51-4316-9388-3b89aa32dd60" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_AlternateBaseRateLoansMember_2ceaae0e-d972-4c37-9a31-6d763fb85785" xlink:href="crwd-20240731.xsd#crwd_AlternateBaseRateLoansMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_477893fb-23b3-48af-be01-c507ad2f25d3" xlink:to="loc_crwd_AlternateBaseRateLoansMember_2ceaae0e-d972-4c37-9a31-6d763fb85785" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_515d71f3-f834-4305-b11f-7575de88d354" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_6fad7a64-2b0b-4b9f-8cbd-e84e09914e49" xlink:to="loc_us-gaap_DebtInstrumentAxis_515d71f3-f834-4305-b11f-7575de88d354" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_515d71f3-f834-4305-b11f-7575de88d354_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_515d71f3-f834-4305-b11f-7575de88d354" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_515d71f3-f834-4305-b11f-7575de88d354_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_95edf04e-80fb-4052-ab36-75cee537bfd0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_515d71f3-f834-4305-b11f-7575de88d354" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_95edf04e-80fb-4052-ab36-75cee537bfd0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ARCreditAgreementMember_b4278661-a1f1-450e-a621-3f26392d5256" xlink:href="crwd-20240731.xsd#crwd_ARCreditAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_95edf04e-80fb-4052-ab36-75cee537bfd0" xlink:to="loc_crwd_ARCreditAgreementMember_b4278661-a1f1-450e-a621-3f26392d5256" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_A300SeniorNotesMember_4b647fa4-1d98-4bda-8f17-0b754d909dde" xlink:href="crwd-20240731.xsd#crwd_A300SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_95edf04e-80fb-4052-ab36-75cee537bfd0" xlink:to="loc_crwd_A300SeniorNotesMember_4b647fa4-1d98-4bda-8f17-0b754d909dde" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_ee88f34f-4719-45df-a6f1-5232daa8b888" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_6fad7a64-2b0b-4b9f-8cbd-e84e09914e49" xlink:to="loc_srt_RangeAxis_ee88f34f-4719-45df-a6f1-5232daa8b888" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_ee88f34f-4719-45df-a6f1-5232daa8b888_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_ee88f34f-4719-45df-a6f1-5232daa8b888" xlink:to="loc_srt_RangeMember_ee88f34f-4719-45df-a6f1-5232daa8b888_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_83afd516-b5fc-4850-b1aa-58f33e5fb89b" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_ee88f34f-4719-45df-a6f1-5232daa8b888" xlink:to="loc_srt_RangeMember_83afd516-b5fc-4850-b1aa-58f33e5fb89b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_167a8b1d-ea99-4c41-ba9e-5b49185bb2b4" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_83afd516-b5fc-4850-b1aa-58f33e5fb89b" xlink:to="loc_srt_MinimumMember_167a8b1d-ea99-4c41-ba9e-5b49185bb2b4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_b67de6f2-78b4-45df-9634-8908274d7970" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_83afd516-b5fc-4850-b1aa-58f33e5fb89b" xlink:to="loc_srt_MaximumMember_b67de6f2-78b4-45df-9634-8908274d7970" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_c32fa3f9-acd9-4b2b-9980-e17b57ee8aea" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_6fad7a64-2b0b-4b9f-8cbd-e84e09914e49" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_c32fa3f9-acd9-4b2b-9980-e17b57ee8aea" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_c32fa3f9-acd9-4b2b-9980-e17b57ee8aea_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_c32fa3f9-acd9-4b2b-9980-e17b57ee8aea" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_c32fa3f9-acd9-4b2b-9980-e17b57ee8aea_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_5855baca-5995-450b-adcb-5730169f25d6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_c32fa3f9-acd9-4b2b-9980-e17b57ee8aea" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_5855baca-5995-450b-adcb-5730169f25d6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_65142e20-3754-4b74-a9a0-47bed4f1f9df" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_5855baca-5995-450b-adcb-5730169f25d6" xlink:to="loc_us-gaap_SeniorNotesMember_65142e20-3754-4b74-a9a0-47bed4f1f9df" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_DebtRedemptionTermsAxis_1905f10f-c248-4c2b-b012-a945d5ce8709" xlink:href="crwd-20240731.xsd#crwd_DebtRedemptionTermsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_6fad7a64-2b0b-4b9f-8cbd-e84e09914e49" xlink:to="loc_crwd_DebtRedemptionTermsAxis_1905f10f-c248-4c2b-b012-a945d5ce8709" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_DebtRedemptionTermsDomain_1905f10f-c248-4c2b-b012-a945d5ce8709_default" xlink:href="crwd-20240731.xsd#crwd_DebtRedemptionTermsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_crwd_DebtRedemptionTermsAxis_1905f10f-c248-4c2b-b012-a945d5ce8709" xlink:to="loc_crwd_DebtRedemptionTermsDomain_1905f10f-c248-4c2b-b012-a945d5ce8709_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_DebtRedemptionTermsDomain_f4adb842-0069-4c0d-809c-5aa13ef3603c" xlink:href="crwd-20240731.xsd#crwd_DebtRedemptionTermsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_crwd_DebtRedemptionTermsAxis_1905f10f-c248-4c2b-b012-a945d5ce8709" xlink:to="loc_crwd_DebtRedemptionTermsDomain_f4adb842-0069-4c0d-809c-5aa13ef3603c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_PlusMakeWholePremiumMember_40f8cb77-09cf-4141-9b2b-c647c163b60f" xlink:href="crwd-20240731.xsd#crwd_PlusMakeWholePremiumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_DebtRedemptionTermsDomain_f4adb842-0069-4c0d-809c-5aa13ef3603c" xlink:to="loc_crwd_PlusMakeWholePremiumMember_40f8cb77-09cf-4141-9b2b-c647c163b60f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ProceedsFromEquityOfferingProvidedPrincipalAmountOfRedemptionsDoesNotExceed40Member_aaf8ff28-f619-4ec9-9861-a3dfaec9a836" xlink:href="crwd-20240731.xsd#crwd_ProceedsFromEquityOfferingProvidedPrincipalAmountOfRedemptionsDoesNotExceed40Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_DebtRedemptionTermsDomain_f4adb842-0069-4c0d-809c-5aa13ef3603c" xlink:to="loc_crwd_ProceedsFromEquityOfferingProvidedPrincipalAmountOfRedemptionsDoesNotExceed40Member_aaf8ff28-f619-4ec9-9861-a3dfaec9a836" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_32ad8549-6395-48be-85e4-5fb9a2c3ae6f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_6fad7a64-2b0b-4b9f-8cbd-e84e09914e49" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_32ad8549-6395-48be-85e4-5fb9a2c3ae6f" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_32ad8549-6395-48be-85e4-5fb9a2c3ae6f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_32ad8549-6395-48be-85e4-5fb9a2c3ae6f" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_32ad8549-6395-48be-85e4-5fb9a2c3ae6f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_54db3e6a-49be-4746-8db7-417fcff86054" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_32ad8549-6395-48be-85e4-5fb9a2c3ae6f" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_54db3e6a-49be-4746-8db7-417fcff86054" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_14e47cb4-c3a9-4d64-aa58-e5ecf452dde2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_54db3e6a-49be-4746-8db7-417fcff86054" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_14e47cb4-c3a9-4d64-aa58-e5ecf452dde2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_043bb6de-4753-4bec-b526-c76379f61bf8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_54db3e6a-49be-4746-8db7-417fcff86054" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_043bb6de-4753-4bec-b526-c76379f61bf8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_261e9931-1a3e-4f42-83e2-baaccaf345e5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_54db3e6a-49be-4746-8db7-417fcff86054" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_261e9931-1a3e-4f42-83e2-baaccaf345e5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodFourMember_2c64d6e0-5dc4-4be5-9140-c5a6e88c9401" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodFourMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_54db3e6a-49be-4746-8db7-417fcff86054" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodFourMember_2c64d6e0-5dc4-4be5-9140-c5a6e88c9401" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodFiveMember_e121cd01-1d1a-486c-80f5-bb75c6700ca3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodFiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_54db3e6a-49be-4746-8db7-417fcff86054" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodFiveMember_e121cd01-1d1a-486c-80f5-bb75c6700ca3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_VariableRateComponentAxis_e9fb9f67-5b07-4573-af10-f99e54c774a1" xlink:href="crwd-20240731.xsd#crwd_VariableRateComponentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_6fad7a64-2b0b-4b9f-8cbd-e84e09914e49" xlink:to="loc_crwd_VariableRateComponentAxis_e9fb9f67-5b07-4573-af10-f99e54c774a1" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_VariableRateComponentDomain_e9fb9f67-5b07-4573-af10-f99e54c774a1_default" xlink:href="crwd-20240731.xsd#crwd_VariableRateComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_crwd_VariableRateComponentAxis_e9fb9f67-5b07-4573-af10-f99e54c774a1" xlink:to="loc_crwd_VariableRateComponentDomain_e9fb9f67-5b07-4573-af10-f99e54c774a1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_VariableRateComponentDomain_aeb096f3-9e41-4389-acca-ed3537b46be0" xlink:href="crwd-20240731.xsd#crwd_VariableRateComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_crwd_VariableRateComponentAxis_e9fb9f67-5b07-4573-af10-f99e54c774a1" xlink:to="loc_crwd_VariableRateComponentDomain_aeb096f3-9e41-4389-acca-ed3537b46be0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_VariableRateComponentTwoMember_8d46a3a3-1868-4383-8242-cff050c5631e" xlink:href="crwd-20240731.xsd#crwd_VariableRateComponentTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_VariableRateComponentDomain_aeb096f3-9e41-4389-acca-ed3537b46be0" xlink:to="loc_crwd_VariableRateComponentTwoMember_8d46a3a3-1868-4383-8242-cff050c5631e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_22afb192-33b1-4b60-a55c-016d5770c859" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_6fad7a64-2b0b-4b9f-8cbd-e84e09914e49" xlink:to="loc_us-gaap_VariableRateAxis_22afb192-33b1-4b60-a55c-016d5770c859" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_22afb192-33b1-4b60-a55c-016d5770c859_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_22afb192-33b1-4b60-a55c-016d5770c859" xlink:to="loc_us-gaap_VariableRateDomain_22afb192-33b1-4b60-a55c-016d5770c859_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_4bd585cb-468a-484a-928c-b1decffebdbe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_22afb192-33b1-4b60-a55c-016d5770c859" xlink:to="loc_us-gaap_VariableRateDomain_4bd585cb-468a-484a-928c-b1decffebdbe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_FederalFundsRateMember_aff158b5-089e-4906-8caa-d614a9e93e9f" xlink:href="crwd-20240731.xsd#crwd_FederalFundsRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_4bd585cb-468a-484a-928c-b1decffebdbe" xlink:to="loc_crwd_FederalFundsRateMember_aff158b5-089e-4906-8caa-d614a9e93e9f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_1d252a01-314c-488f-ad29-2903ceddba00" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SecuredOvernightFinancingRateSofrMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_4bd585cb-468a-484a-928c-b1decffebdbe" xlink:to="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_1d252a01-314c-488f-ad29-2903ceddba00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_ba46c6dc-5c60-4c46-96b8-e29bbf4abb51" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_ba46c6dc-5c60-4c46-96b8-e29bbf4abb51" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_LineOfCreditFacilityIncrementalBorrowingCapacity_02b60958-a544-4fbc-a012-057b7451161b" xlink:href="crwd-20240731.xsd#crwd_LineOfCreditFacilityIncrementalBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_crwd_LineOfCreditFacilityIncrementalBorrowingCapacity_02b60958-a544-4fbc-a012-057b7451161b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_14669832-a74e-487e-b143-a048e3aec84a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_14669832-a74e-487e-b143-a048e3aec84a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_8a7f0b44-3e38-41f1-9954-7ae0c104b824" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityCommitmentFeePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_8a7f0b44-3e38-41f1-9954-7ae0c104b824" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_DebtInstrumentCovenantInterestCoverageRatioMinimum_e4e3a724-59a0-4dbe-a9dd-ab6ed0fdb54b" xlink:href="crwd-20240731.xsd#crwd_DebtInstrumentCovenantInterestCoverageRatioMinimum"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_crwd_DebtInstrumentCovenantInterestCoverageRatioMinimum_e4e3a724-59a0-4dbe-a9dd-ab6ed0fdb54b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_DebtInstrumentCovenantTotalLeverageRatioMaximum_457d9389-e738-44eb-ba3a-06fb8be668b0" xlink:href="crwd-20240731.xsd#crwd_DebtInstrumentCovenantTotalLeverageRatioMaximum"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_crwd_DebtInstrumentCovenantTotalLeverageRatioMaximum_457d9389-e738-44eb-ba3a-06fb8be668b0" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_DebtInstrumentCovenantTotalLeverageRatioSteppedDownMaximum_f38b785c-bee4-4380-b04f-698300084284" xlink:href="crwd-20240731.xsd#crwd_DebtInstrumentCovenantTotalLeverageRatioSteppedDownMaximum"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_crwd_DebtInstrumentCovenantTotalLeverageRatioSteppedDownMaximum_f38b785c-bee4-4380-b04f-698300084284" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_fe64e241-3bd5-48c2-905d-3ae6404e3262" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_us-gaap_LineOfCredit_fe64e241-3bd5-48c2-905d-3ae6404e3262" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_2fdb9c4c-3038-48c6-8aed-cfdbbb174c1b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_2fdb9c4c-3038-48c6-8aed-cfdbbb174c1b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_9a75e44c-da29-42a7-8bbd-7e96382b2a7a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_9a75e44c-da29-42a7-8bbd-7e96382b2a7a" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_74712890-fbb0-4a0e-9202-26c9fa2e4ef3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPricePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_74712890-fbb0-4a0e-9202-26c9fa2e4ef3" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_DebtInstrumentRedemptionsPercentageOfOriginalPrincipalAmount_a0b9a6bc-3886-440f-879d-5502ac22d5ac" xlink:href="crwd-20240731.xsd#crwd_DebtInstrumentRedemptionsPercentageOfOriginalPrincipalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_crwd_DebtInstrumentRedemptionsPercentageOfOriginalPrincipalAmount_a0b9a6bc-3886-440f-879d-5502ac22d5ac" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_142f1f52-4d82-45b9-850a-91fbb37e4c4c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromDebtNetOfIssuanceCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_142f1f52-4d82-45b9-850a-91fbb37e4c4c" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_PaymentForUnderwritingCommissions_57d6be9c-1b95-4807-b2de-43c0dba0e2aa" xlink:href="crwd-20240731.xsd#crwd_PaymentForUnderwritingCommissions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_crwd_PaymentForUnderwritingCommissions_57d6be9c-1b95-4807-b2de-43c0dba0e2aa" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfFinancingCosts_ad3169a1-0855-4ccd-bbb6-e586c411c158" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsOfFinancingCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_us-gaap_PaymentsOfFinancingCosts_ad3169a1-0855-4ccd-bbb6-e586c411c158" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_b9cb6e90-c9d3-4646-9c84-8b985f31cca6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_us-gaap_InterestExpenseDebt_b9cb6e90-c9d3-4646-9c84-8b985f31cca6" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFairValue_ce908539-5a2e-4bd7-a91a-03264507effd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_fef24197-1f12-446a-ba5d-8eb57ec884bf" xlink:to="loc_us-gaap_DebtInstrumentFairValue_ce908539-5a2e-4bd7-a91a-03264507effd" xlink:type="arc" order="16"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/StockBasedCompensationAdditionalInformationDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#StockBasedCompensationAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/StockBasedCompensationAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d6bcff-31d0-4b04-8c0e-fe5ba0ab2d51" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d6bcff-31d0-4b04-8c0e-fe5ba0ab2d51" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_0048990d-987d-436c-8403-42904969214e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d6bcff-31d0-4b04-8c0e-fe5ba0ab2d51" xlink:to="loc_us-gaap_PlanNameAxis_0048990d-987d-436c-8403-42904969214e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_0048990d-987d-436c-8403-42904969214e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_0048990d-987d-436c-8403-42904969214e" xlink:to="loc_us-gaap_PlanNameDomain_0048990d-987d-436c-8403-42904969214e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_bf1850cb-6abd-48bb-b48a-53a6a8bbfc28" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_0048990d-987d-436c-8403-42904969214e" xlink:to="loc_us-gaap_PlanNameDomain_bf1850cb-6abd-48bb-b48a-53a6a8bbfc28" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_EquityIncentivePlan2019Member_f728de96-c62e-4f4e-817f-e58fd023219f" xlink:href="crwd-20240731.xsd#crwd_EquityIncentivePlan2019Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_bf1850cb-6abd-48bb-b48a-53a6a8bbfc28" xlink:to="loc_crwd_EquityIncentivePlan2019Member_f728de96-c62e-4f4e-817f-e58fd023219f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_44345ab5-862a-4ef1-a4b0-36e57b4e0457" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d6bcff-31d0-4b04-8c0e-fe5ba0ab2d51" xlink:to="loc_us-gaap_StatementClassOfStockAxis_44345ab5-862a-4ef1-a4b0-36e57b4e0457" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_44345ab5-862a-4ef1-a4b0-36e57b4e0457_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_44345ab5-862a-4ef1-a4b0-36e57b4e0457" xlink:to="loc_us-gaap_ClassOfStockDomain_44345ab5-862a-4ef1-a4b0-36e57b4e0457_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_b004d66b-20b4-49bf-9767-78b4c16bb5e8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_44345ab5-862a-4ef1-a4b0-36e57b4e0457" xlink:to="loc_us-gaap_ClassOfStockDomain_b004d66b-20b4-49bf-9767-78b4c16bb5e8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_a726d03b-fe51-49b2-b191-556015eeb13e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_b004d66b-20b4-49bf-9767-78b4c16bb5e8" xlink:to="loc_us-gaap_CommonClassAMember_a726d03b-fe51-49b2-b191-556015eeb13e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_1c19e4b6-1354-4c50-8629-f6c0ba4141b7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d6bcff-31d0-4b04-8c0e-fe5ba0ab2d51" xlink:to="loc_us-gaap_AwardTypeAxis_1c19e4b6-1354-4c50-8629-f6c0ba4141b7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_1c19e4b6-1354-4c50-8629-f6c0ba4141b7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_1c19e4b6-1354-4c50-8629-f6c0ba4141b7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_1c19e4b6-1354-4c50-8629-f6c0ba4141b7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_863908bd-cfb1-498d-addf-a80042716fb7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_1c19e4b6-1354-4c50-8629-f6c0ba4141b7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_863908bd-cfb1-498d-addf-a80042716fb7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_df94675b-f172-4f87-96cd-9d0014cc87bf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_863908bd-cfb1-498d-addf-a80042716fb7" xlink:to="loc_us-gaap_EmployeeStockOptionMember_df94675b-f172-4f87-96cd-9d0014cc87bf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ServiceBasedRestrictedStockUnitsVestingMember_6ea56d9d-d284-44a9-bfda-59b627c575af" xlink:href="crwd-20240731.xsd#crwd_ServiceBasedRestrictedStockUnitsVestingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_863908bd-cfb1-498d-addf-a80042716fb7" xlink:to="loc_crwd_ServiceBasedRestrictedStockUnitsVestingMember_6ea56d9d-d284-44a9-bfda-59b627c575af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_46cfcf33-7a9a-45b0-8348-2c31b9507488" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_863908bd-cfb1-498d-addf-a80042716fb7" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_46cfcf33-7a9a-45b0-8348-2c31b9507488" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_PerformanceBasedStockUnitsMember_01cf67f1-9ec4-4350-92c1-8cd0c492770b" xlink:href="crwd-20240731.xsd#crwd_PerformanceBasedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_863908bd-cfb1-498d-addf-a80042716fb7" xlink:to="loc_crwd_PerformanceBasedStockUnitsMember_01cf67f1-9ec4-4350-92c1-8cd0c492770b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_SpecialPerformanceBasedStockUnitsMember_10837454-7b9e-4560-990d-46de86969f71" xlink:href="crwd-20240731.xsd#crwd_SpecialPerformanceBasedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_863908bd-cfb1-498d-addf-a80042716fb7" xlink:to="loc_crwd_SpecialPerformanceBasedStockUnitsMember_10837454-7b9e-4560-990d-46de86969f71" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_02062260-c9cf-49e6-973e-017c8b1ead32" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_863908bd-cfb1-498d-addf-a80042716fb7" xlink:to="loc_us-gaap_EmployeeStockMember_02062260-c9cf-49e6-973e-017c8b1ead32" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_f6dc6a26-0381-4d2f-bb1e-f9395e7af675" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d6bcff-31d0-4b04-8c0e-fe5ba0ab2d51" xlink:to="loc_srt_TitleOfIndividualAxis_f6dc6a26-0381-4d2f-bb1e-f9395e7af675" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_f6dc6a26-0381-4d2f-bb1e-f9395e7af675_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_f6dc6a26-0381-4d2f-bb1e-f9395e7af675" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_f6dc6a26-0381-4d2f-bb1e-f9395e7af675_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_8d7b91aa-136d-409f-9635-c48d547ede08" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_f6dc6a26-0381-4d2f-bb1e-f9395e7af675" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_8d7b91aa-136d-409f-9635-c48d547ede08" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ExecutiveOfficerMember_86b5105b-fdf7-4d26-95df-94229b03922b" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ExecutiveOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_8d7b91aa-136d-409f-9635-c48d547ede08" xlink:to="loc_srt_ExecutiveOfficerMember_86b5105b-fdf7-4d26-95df-94229b03922b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_0e721020-affa-4f7f-8b05-00a9d72207ff" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VestingAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d6bcff-31d0-4b04-8c0e-fe5ba0ab2d51" xlink:to="loc_us-gaap_VestingAxis_0e721020-affa-4f7f-8b05-00a9d72207ff" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_0e721020-affa-4f7f-8b05-00a9d72207ff_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VestingAxis_0e721020-affa-4f7f-8b05-00a9d72207ff" xlink:to="loc_us-gaap_VestingDomain_0e721020-affa-4f7f-8b05-00a9d72207ff_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_3d9ef808-bc28-4efd-bc4b-9b59c08a2557" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VestingAxis_0e721020-affa-4f7f-8b05-00a9d72207ff" xlink:to="loc_us-gaap_VestingDomain_3d9ef808-bc28-4efd-bc4b-9b59c08a2557" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_b96a1435-1aea-4168-8a63-a811345b9d1b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_3d9ef808-bc28-4efd-bc4b-9b59c08a2557" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_b96a1435-1aea-4168-8a63-a811345b9d1b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_33704e02-259c-4627-8de1-6cb6723f1a9c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_3d9ef808-bc28-4efd-bc4b-9b59c08a2557" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_33704e02-259c-4627-8de1-6cb6723f1a9c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_a96d609f-ad9a-400d-8efd-fdc1a8945f1b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationAwardTrancheThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_3d9ef808-bc28-4efd-bc4b-9b59c08a2557" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_a96d609f-ad9a-400d-8efd-fdc1a8945f1b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedPaymentArrangementTrancheFourMember_892f1c5c-f0ed-4453-84ee-a212e4893c66" xlink:href="crwd-20240731.xsd#crwd_ShareBasedPaymentArrangementTrancheFourMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_3d9ef808-bc28-4efd-bc4b-9b59c08a2557" xlink:to="loc_crwd_ShareBasedPaymentArrangementTrancheFourMember_892f1c5c-f0ed-4453-84ee-a212e4893c66" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedPaymentArrangementTrancheFiveMember_10ba4612-e2e8-41a9-9dd8-7947da3add5b" xlink:href="crwd-20240731.xsd#crwd_ShareBasedPaymentArrangementTrancheFiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_3d9ef808-bc28-4efd-bc4b-9b59c08a2557" xlink:to="loc_crwd_ShareBasedPaymentArrangementTrancheFiveMember_10ba4612-e2e8-41a9-9dd8-7947da3add5b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedPaymentArrangementTrancheSixMember_eeb93ac8-22ad-4c90-8f0f-654f24854e2e" xlink:href="crwd-20240731.xsd#crwd_ShareBasedPaymentArrangementTrancheSixMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_3d9ef808-bc28-4efd-bc4b-9b59c08a2557" xlink:to="loc_crwd_ShareBasedPaymentArrangementTrancheSixMember_eeb93ac8-22ad-4c90-8f0f-654f24854e2e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedPaymentArrangementTrancheSevenMember_3e347471-7753-4250-aaa7-1b8e50121374" xlink:href="crwd-20240731.xsd#crwd_ShareBasedPaymentArrangementTrancheSevenMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_3d9ef808-bc28-4efd-bc4b-9b59c08a2557" xlink:to="loc_crwd_ShareBasedPaymentArrangementTrancheSevenMember_3e347471-7753-4250-aaa7-1b8e50121374" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedPaymentArrangementTrancheEightMember_f02a051a-6962-419c-97f6-072818695612" xlink:href="crwd-20240731.xsd#crwd_ShareBasedPaymentArrangementTrancheEightMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_3d9ef808-bc28-4efd-bc4b-9b59c08a2557" xlink:to="loc_crwd_ShareBasedPaymentArrangementTrancheEightMember_f02a051a-6962-419c-97f6-072818695612" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_c33f60fe-2796-40e0-afb0-5c9fa49dc972" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d6bcff-31d0-4b04-8c0e-fe5ba0ab2d51" xlink:to="loc_srt_RangeAxis_c33f60fe-2796-40e0-afb0-5c9fa49dc972" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_c33f60fe-2796-40e0-afb0-5c9fa49dc972_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_c33f60fe-2796-40e0-afb0-5c9fa49dc972" xlink:to="loc_srt_RangeMember_c33f60fe-2796-40e0-afb0-5c9fa49dc972_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_78fc2635-cac2-41c7-ba1b-d428b66faeb3" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_c33f60fe-2796-40e0-afb0-5c9fa49dc972" xlink:to="loc_srt_RangeMember_78fc2635-cac2-41c7-ba1b-d428b66faeb3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_721aaa8a-2b65-4272-924e-ee3b8fc546fc" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_78fc2635-cac2-41c7-ba1b-d428b66faeb3" xlink:to="loc_srt_MinimumMember_721aaa8a-2b65-4272-924e-ee3b8fc546fc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_f5742cac-ab58-4816-95d7-a7ca5d87aaa3" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_78fc2635-cac2-41c7-ba1b-d428b66faeb3" xlink:to="loc_srt_MaximumMember_f5742cac-ab58-4816-95d7-a7ca5d87aaa3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationAwardModificationTypeAxis_796c2084-6a96-4819-977a-222fc58fc06f" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationAwardModificationTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_10d6bcff-31d0-4b04-8c0e-fe5ba0ab2d51" xlink:to="loc_crwd_ShareBasedCompensationAwardModificationTypeAxis_796c2084-6a96-4819-977a-222fc58fc06f" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationAwardModificationTypeDomain_796c2084-6a96-4819-977a-222fc58fc06f_default" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationAwardModificationTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_crwd_ShareBasedCompensationAwardModificationTypeAxis_796c2084-6a96-4819-977a-222fc58fc06f" xlink:to="loc_crwd_ShareBasedCompensationAwardModificationTypeDomain_796c2084-6a96-4819-977a-222fc58fc06f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationAwardModificationTypeDomain_ba034cdb-47a4-4770-837e-88e3a83d2fd5" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationAwardModificationTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_crwd_ShareBasedCompensationAwardModificationTypeAxis_796c2084-6a96-4819-977a-222fc58fc06f" xlink:to="loc_crwd_ShareBasedCompensationAwardModificationTypeDomain_ba034cdb-47a4-4770-837e-88e3a83d2fd5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_RolloverFeatureMember_41dda36c-f015-42c8-b406-4c758774e068" xlink:href="crwd-20240731.xsd#crwd_RolloverFeatureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ShareBasedCompensationAwardModificationTypeDomain_ba034cdb-47a4-4770-837e-88e3a83d2fd5" xlink:to="loc_crwd_RolloverFeatureMember_41dda36c-f015-42c8-b406-4c758774e068" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_4b28a860-3bd9-47da-b995-076afe73d1ee" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_4b28a860-3bd9-47da-b995-076afe73d1ee" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum_3a2a8b9d-2d35-4456-8bfc-4b54b76fd147" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum_3a2a8b9d-2d35-4456-8bfc-4b54b76fd147" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_4d81d1f4-9f97-456a-bb2c-12278155b9f5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_4d81d1f4-9f97-456a-bb2c-12278155b9f5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_dc285231-8994-4f1c-a240-4af1e1165aab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_dc285231-8994-4f1c-a240-4af1e1165aab" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_6f86c48b-21dc-4537-94be-05f26c254b01" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_6f86c48b-21dc-4537-94be-05f26c254b01" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_3fc2c741-6775-4386-b16d-fdc38b542612" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_3fc2c741-6775-4386-b16d-fdc38b542612" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_456c82d3-068e-4655-87c3-a5ffb9bbb2d4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_456c82d3-068e-4655-87c3-a5ffb9bbb2d4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_eccf0c31-b138-4a40-a5f3-3431c384b8f7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_eccf0c31-b138-4a40-a5f3-3431c384b8f7" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_4a948019-ef60-4499-8ba1-9f0ed4b4e581" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_4a948019-ef60-4499-8ba1-9f0ed4b4e581" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_3d8e872d-b49f-4498-bcbf-038dde4aff29" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_3d8e872d-b49f-4498-bcbf-038dde4aff29" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_2c285897-ba3e-4fea-ab0e-8e071824da6d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_2c285897-ba3e-4fea-ab0e-8e071824da6d" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfQuarterlyInstallments_c4609e5b-5ca0-4118-9ae8-1933a79d4ebe" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfQuarterlyInstallments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfQuarterlyInstallments_c4609e5b-5ca0-4118-9ae8-1933a79d4ebe" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_b8c77a22-bbb5-4929-a395-024430028738" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_b8c77a22-bbb5-4929-a395-024430028738" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_3d4f8db6-2ee1-4c00-adc0-ae42a753051d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_3d4f8db6-2ee1-4c00-adc0-ae42a753051d" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_12b5b8ea-2ca4-4875-b7f2-cd28925eb894" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_12b5b8ea-2ca4-4875-b7f2-cd28925eb894" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ThresholdConsecutiveTradingDays_fb6b6eeb-6dd1-49c5-a2ff-66ca996aecf6" xlink:href="crwd-20240731.xsd#crwd_ThresholdConsecutiveTradingDays"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_crwd_ThresholdConsecutiveTradingDays_fb6b6eeb-6dd1-49c5-a2ff-66ca996aecf6" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_c2e4dbd2-746d-445f-8e1b-40c3cd31f535" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_c2e4dbd2-746d-445f-8e1b-40c3cd31f535" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_aa98568a-0889-4626-9e70-036d629991b0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_aa98568a-0889-4626-9e70-036d629991b0" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsHistoricalVolatilityRateWeight_7375e824-35c6-458b-b1f4-f3243480d9fb" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsHistoricalVolatilityRateWeight"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsHistoricalVolatilityRateWeight_7375e824-35c6-458b-b1f4-f3243480d9fb" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardLookBackPeriod_4af2d14e-e761-4935-bcdf-9590193f906f" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardLookBackPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardLookBackPeriod_4af2d14e-e761-4935-bcdf-9590193f906f" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsImpliedVolatilityRateWeight_6cc2037f-b706-4b2d-8549-b843c5f72b87" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsImpliedVolatilityRateWeight"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsImpliedVolatilityRateWeight_6cc2037f-b706-4b2d-8549-b843c5f72b87" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesToBeAuthorizedMaximum_d2f471dd-b5e5-44f9-8b41-aa16d1ab1fc9" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesToBeAuthorizedMaximum"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesToBeAuthorizedMaximum_d2f471dd-b5e5-44f9-8b41-aa16d1ab1fc9" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_EmployeeStockPurchasePlanOfferingPeriod_c2e37d51-7cd3-40a6-9e95-5fd3f19cc39f" xlink:href="crwd-20240731.xsd#crwd_EmployeeStockPurchasePlanOfferingPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_crwd_EmployeeStockPurchasePlanOfferingPeriod_c2e37d51-7cd3-40a6-9e95-5fd3f19cc39f" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_EmployeeStockPurchasePlanNumberOfPurchasePeriod_c6396a0c-4f17-495b-87a3-3089bfda46c1" xlink:href="crwd-20240731.xsd#crwd_EmployeeStockPurchasePlanNumberOfPurchasePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_crwd_EmployeeStockPurchasePlanNumberOfPurchasePeriod_c6396a0c-4f17-495b-87a3-3089bfda46c1" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_EmployeeStockPurchasePlanDurationOfPurchasePeriod_2e6f36cb-b0bc-4312-87b7-0119fb88fa92" xlink:href="crwd-20240731.xsd#crwd_EmployeeStockPurchasePlanDurationOfPurchasePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_crwd_EmployeeStockPurchasePlanDurationOfPurchasePeriod_2e6f36cb-b0bc-4312-87b7-0119fb88fa92" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_EmployeeStockPurchasePlanPercentageOfEligibleCompensation_0f7d6c9a-7127-4c3d-81b9-ff1b7c1ad329" xlink:href="crwd-20240731.xsd#crwd_EmployeeStockPurchasePlanPercentageOfEligibleCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_crwd_EmployeeStockPurchasePlanPercentageOfEligibleCompensation_0f7d6c9a-7127-4c3d-81b9-ff1b7c1ad329" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_MaximumNumberOfSharesEachParticipantCanPurchaseDuringPurchasePeriod_b1c70ac4-474e-46b2-a1ba-4dbb09169757" xlink:href="crwd-20240731.xsd#crwd_MaximumNumberOfSharesEachParticipantCanPurchaseDuringPurchasePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_crwd_MaximumNumberOfSharesEachParticipantCanPurchaseDuringPurchasePeriod_b1c70ac4-474e-46b2-a1ba-4dbb09169757" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_6c3524cd-8f37-412f-8170-29c78a26a2a3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_6c3524cd-8f37-412f-8170-29c78a26a2a3" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedPaymentArrangementPlanModificationNumberOfContributionChanges_f6d6483a-23de-42eb-873f-edd1f44b367e" xlink:href="crwd-20240731.xsd#crwd_ShareBasedPaymentArrangementPlanModificationNumberOfContributionChanges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_crwd_ShareBasedPaymentArrangementPlanModificationNumberOfContributionChanges_f6d6483a-23de-42eb-873f-edd1f44b367e" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost_24aa55a7-d719-4f03-9c27-f185d3f089fa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost_24aa55a7-d719-4f03-9c27-f185d3f089fa" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_191a20fc-dd09-4298-8da1-59f959b2f2ef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ddcea4d6-b46a-4ce7-8838-7e17adbba508" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_191a20fc-dd09-4298-8da1-59f959b2f2ef" xlink:type="arc" order="30"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/StockBasedCompensationRSUPSUandSpecialPSUActivityDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#StockBasedCompensationRSUPSUandSpecialPSUActivityDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/StockBasedCompensationRSUPSUandSpecialPSUActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c4d95396-1380-424c-af7a-35f79fd012e2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_af16d581-3507-408e-bad7-2044be91ac0a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c4d95396-1380-424c-af7a-35f79fd012e2" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_af16d581-3507-408e-bad7-2044be91ac0a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_9cdcc0d8-1578-424e-ad35-412db20cb658" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_af16d581-3507-408e-bad7-2044be91ac0a" xlink:to="loc_us-gaap_AwardTypeAxis_9cdcc0d8-1578-424e-ad35-412db20cb658" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_9cdcc0d8-1578-424e-ad35-412db20cb658_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_9cdcc0d8-1578-424e-ad35-412db20cb658" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_9cdcc0d8-1578-424e-ad35-412db20cb658_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_d8a8f0db-b05d-4832-bd63-7dc05a34afe4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_9cdcc0d8-1578-424e-ad35-412db20cb658" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_d8a8f0db-b05d-4832-bd63-7dc05a34afe4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationAwardOtherThanStockOptionsMember_1c7b08a3-f8af-4d16-9b51-3258e90729a5" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationAwardOtherThanStockOptionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_d8a8f0db-b05d-4832-bd63-7dc05a34afe4" xlink:to="loc_crwd_ShareBasedCompensationAwardOtherThanStockOptionsMember_1c7b08a3-f8af-4d16-9b51-3258e90729a5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_0abb57fd-3a94-4c71-bb1f-7bc3d90a850e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c4d95396-1380-424c-af7a-35f79fd012e2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_0abb57fd-3a94-4c71-bb1f-7bc3d90a850e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_b201e2a3-a4f8-4ed8-bd0b-79d21a962de2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_0abb57fd-3a94-4c71-bb1f-7bc3d90a850e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_b201e2a3-a4f8-4ed8-bd0b-79d21a962de2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_a305994d-4058-4b6d-b8d9-f5ce7403bb55" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_0abb57fd-3a94-4c71-bb1f-7bc3d90a850e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_a305994d-4058-4b6d-b8d9-f5ce7403bb55" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_2f806f9f-b09a-48a2-81c8-086b3bb1c9c1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_0abb57fd-3a94-4c71-bb1f-7bc3d90a850e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_2f806f9f-b09a-48a2-81c8-086b3bb1c9c1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustment_9da24ad5-f116-4343-ab14-d4c4c0d972d6" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_0abb57fd-3a94-4c71-bb1f-7bc3d90a850e" xlink:to="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustment_9da24ad5-f116-4343-ab14-d4c4c0d972d6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_a985ea60-48d9-4d75-8366-a7219918d804" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_0abb57fd-3a94-4c71-bb1f-7bc3d90a850e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_a985ea60-48d9-4d75-8366-a7219918d804" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_2a69ef60-bb75-433e-adce-1b46ca7fa08d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestNumber_e8f69a71-2c54-4219-a916-99bdd94a550c" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c4d95396-1380-424c-af7a-35f79fd012e2" xlink:to="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestNumber_e8f69a71-2c54-4219-a916-99bdd94a550c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_a867022d-0bab-4844-a144-a75033e754bf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c4d95396-1380-424c-af7a-35f79fd012e2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_a867022d-0bab-4844-a144-a75033e754bf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_71bb0280-e2ce-41d9-a0a9-bac132ac59e3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_a867022d-0bab-4844-a144-a75033e754bf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_71bb0280-e2ce-41d9-a0a9-bac132ac59e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_a4215944-cdd4-4a12-bf1d-c0ad77c15e62" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_a867022d-0bab-4844-a144-a75033e754bf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_a4215944-cdd4-4a12-bf1d-c0ad77c15e62" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_cd6d3a21-317c-4423-83d2-dbc489df1497" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_a867022d-0bab-4844-a144-a75033e754bf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_cd6d3a21-317c-4423-83d2-dbc489df1497" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustmentWeightedAverageGrantDateFairValue_93773bf3-f991-494f-a466-2eea8dbf5583" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustmentWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_a867022d-0bab-4844-a144-a75033e754bf" xlink:to="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustmentWeightedAverageGrantDateFairValue_93773bf3-f991-494f-a466-2eea8dbf5583" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_61e3bb59-5941-4869-90a8-57622300c55e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_a867022d-0bab-4844-a144-a75033e754bf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_61e3bb59-5941-4869-90a8-57622300c55e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_98e48d04-b006-4e38-859e-af4240c1dc0d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestWeightedAverageGrantDateFairValue_249d1524-47ff-4063-94a4-731ec1e2e201" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c4d95396-1380-424c-af7a-35f79fd012e2" xlink:to="loc_crwd_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestWeightedAverageGrantDateFairValue_249d1524-47ff-4063-94a4-731ec1e2e201" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/StockBasedCompensationAssumptionsDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#StockBasedCompensationAssumptionsDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/StockBasedCompensationAssumptionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_968be1d3-2c20-48dc-8fbe-400609bc4e5e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7c153f58-2d4c-4ee2-a774-b66c78399137" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_968be1d3-2c20-48dc-8fbe-400609bc4e5e" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7c153f58-2d4c-4ee2-a774-b66c78399137" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_5aba84e3-246e-47ba-a4ac-86059d977f5a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7c153f58-2d4c-4ee2-a774-b66c78399137" xlink:to="loc_us-gaap_AwardTypeAxis_5aba84e3-246e-47ba-a4ac-86059d977f5a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5aba84e3-246e-47ba-a4ac-86059d977f5a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_5aba84e3-246e-47ba-a4ac-86059d977f5a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5aba84e3-246e-47ba-a4ac-86059d977f5a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0cb856c3-9683-4b0e-87cd-815b64dcddb3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_5aba84e3-246e-47ba-a4ac-86059d977f5a" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0cb856c3-9683-4b0e-87cd-815b64dcddb3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_3cfc475b-9172-426b-8f41-1e2af6823901" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0cb856c3-9683-4b0e-87cd-815b64dcddb3" xlink:to="loc_us-gaap_EmployeeStockMember_3cfc475b-9172-426b-8f41-1e2af6823901" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_dc126a1b-bdf6-4a33-a313-98c2f366bc33" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_7c153f58-2d4c-4ee2-a774-b66c78399137" xlink:to="loc_srt_RangeAxis_dc126a1b-bdf6-4a33-a313-98c2f366bc33" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_dc126a1b-bdf6-4a33-a313-98c2f366bc33_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_dc126a1b-bdf6-4a33-a313-98c2f366bc33" xlink:to="loc_srt_RangeMember_dc126a1b-bdf6-4a33-a313-98c2f366bc33_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_0240886d-80b0-4748-bdd2-2fbc90191e6a" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_dc126a1b-bdf6-4a33-a313-98c2f366bc33" xlink:to="loc_srt_RangeMember_0240886d-80b0-4748-bdd2-2fbc90191e6a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_191c62dd-f414-41c4-8719-7ed499e0cabc" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_0240886d-80b0-4748-bdd2-2fbc90191e6a" xlink:to="loc_srt_MinimumMember_191c62dd-f414-41c4-8719-7ed499e0cabc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_6141c1d9-406c-4568-be55-be4f17b49f37" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_0240886d-80b0-4748-bdd2-2fbc90191e6a" xlink:to="loc_srt_MaximumMember_6141c1d9-406c-4568-be55-be4f17b49f37" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_b6359136-354a-4648-92fd-9f21915e6e20" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_968be1d3-2c20-48dc-8fbe-400609bc4e5e" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_b6359136-354a-4648-92fd-9f21915e6e20" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_7f0f8d96-693f-4a31-ad2e-643e3668234b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_968be1d3-2c20-48dc-8fbe-400609bc4e5e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_7f0f8d96-693f-4a31-ad2e-643e3668234b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_a5d9a63a-e36a-4f4b-a104-59707cff32e8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_968be1d3-2c20-48dc-8fbe-400609bc4e5e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_a5d9a63a-e36a-4f4b-a104-59707cff32e8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_1d2f1125-e6ac-4a3e-b500-faf5982e676d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_968be1d3-2c20-48dc-8fbe-400609bc4e5e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_1d2f1125-e6ac-4a3e-b500-faf5982e676d" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/StockBasedCompensationExpenseDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#StockBasedCompensationExpenseDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/StockBasedCompensationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_d7953d4e-5ec8-4ee8-8131-269850c82b93" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_5fdefafa-ea79-43a8-b893-3bb86464d650" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_d7953d4e-5ec8-4ee8-8131-269850c82b93" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_5fdefafa-ea79-43a8-b893-3bb86464d650" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_dbb457fa-b52a-4c6b-abe6-21c0c2934b16" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_5fdefafa-ea79-43a8-b893-3bb86464d650" xlink:to="loc_srt_ProductOrServiceAxis_dbb457fa-b52a-4c6b-abe6-21c0c2934b16" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_dbb457fa-b52a-4c6b-abe6-21c0c2934b16_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_dbb457fa-b52a-4c6b-abe6-21c0c2934b16" xlink:to="loc_srt_ProductsAndServicesDomain_dbb457fa-b52a-4c6b-abe6-21c0c2934b16_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_f32cb48b-f0ed-4eb8-bff5-376e3332a4d5" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_dbb457fa-b52a-4c6b-abe6-21c0c2934b16" xlink:to="loc_srt_ProductsAndServicesDomain_f32cb48b-f0ed-4eb8-bff5-376e3332a4d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubscriptionAndCirculationMember_b0fdbba8-718e-4be2-acb4-e7e76a17f8ff" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubscriptionAndCirculationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_f32cb48b-f0ed-4eb8-bff5-376e3332a4d5" xlink:to="loc_us-gaap_SubscriptionAndCirculationMember_b0fdbba8-718e-4be2-acb4-e7e76a17f8ff" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ProfessionalServicesMember_a6049f09-641c-4a07-8969-93ff3bb2029f" xlink:href="crwd-20240731.xsd#crwd_ProfessionalServicesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_f32cb48b-f0ed-4eb8-bff5-376e3332a4d5" xlink:to="loc_crwd_ProfessionalServicesMember_a6049f09-641c-4a07-8969-93ff3bb2029f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_e944a6d8-1472-4e46-8d75-458dcd8fb780" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_5fdefafa-ea79-43a8-b893-3bb86464d650" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_e944a6d8-1472-4e46-8d75-458dcd8fb780" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_e944a6d8-1472-4e46-8d75-458dcd8fb780_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_e944a6d8-1472-4e46-8d75-458dcd8fb780" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_e944a6d8-1472-4e46-8d75-458dcd8fb780_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_85ff301e-8dfc-499f-a78d-0986cc5d1927" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_e944a6d8-1472-4e46-8d75-458dcd8fb780" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_85ff301e-8dfc-499f-a78d-0986cc5d1927" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_e8a7c829-b902-400e-815b-e18c481c64ff" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostOfSalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_85ff301e-8dfc-499f-a78d-0986cc5d1927" xlink:to="loc_us-gaap_CostOfSalesMember_e8a7c829-b902-400e-815b-e18c481c64ff" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember_596449f3-bc16-45b4-bd27-0469087ccfef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SellingAndMarketingExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_85ff301e-8dfc-499f-a78d-0986cc5d1927" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_596449f3-bc16-45b4-bd27-0469087ccfef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_4a235e1a-7775-48c8-bbe5-b69ce331f06a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_85ff301e-8dfc-499f-a78d-0986cc5d1927" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_4a235e1a-7775-48c8-bbe5-b69ce331f06a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_3ef858eb-0380-48e2-9c4f-8a048a350033" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GeneralAndAdministrativeExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_85ff301e-8dfc-499f-a78d-0986cc5d1927" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_3ef858eb-0380-48e2-9c4f-8a048a350033" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_cb2b6f1e-70c8-404a-91e5-9c0bf19faf1f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_d7953d4e-5ec8-4ee8-8131-269850c82b93" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_cb2b6f1e-70c8-404a-91e5-9c0bf19faf1f" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/RevenueDeferredRevenueandRemainingPerformanceObligationsRevenuefromContractsbyTypeandRegionDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#RevenueDeferredRevenueandRemainingPerformanceObligationsRevenuefromContractsbyTypeandRegionDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/RevenueDeferredRevenueandRemainingPerformanceObligationsRevenuefromContractsbyTypeandRegionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_501e7089-d312-46a7-b29b-0f029aa36fed" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_54ccf6b8-c873-4622-beda-72ba08e1956a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_501e7089-d312-46a7-b29b-0f029aa36fed" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_54ccf6b8-c873-4622-beda-72ba08e1956a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_dd451fdd-d7e4-4cf3-bed2-e15006569097" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_54ccf6b8-c873-4622-beda-72ba08e1956a" xlink:to="loc_srt_StatementGeographicalAxis_dd451fdd-d7e4-4cf3-bed2-e15006569097" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_dd451fdd-d7e4-4cf3-bed2-e15006569097_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_dd451fdd-d7e4-4cf3-bed2-e15006569097" xlink:to="loc_srt_SegmentGeographicalDomain_dd451fdd-d7e4-4cf3-bed2-e15006569097_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_ba992f5d-bd58-4293-93de-e39f845736da" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_dd451fdd-d7e4-4cf3-bed2-e15006569097" xlink:to="loc_srt_SegmentGeographicalDomain_ba992f5d-bd58-4293-93de-e39f845736da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_990954f7-f961-4925-b051-15ef87b8e575" xlink:href="https://xbrl.sec.gov/country/2024/country-2024.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_ba992f5d-bd58-4293-93de-e39f845736da" xlink:to="loc_country_US_990954f7-f961-4925-b051-15ef87b8e575" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EMEAMember_56bf8405-1f45-4a9c-8e9e-e8344ec365d0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EMEAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_ba992f5d-bd58-4293-93de-e39f845736da" xlink:to="loc_us-gaap_EMEAMember_56bf8405-1f45-4a9c-8e9e-e8344ec365d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_AsiaPacificMember_3abef291-ff48-4dab-868d-ebaadccf8d0b" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_AsiaPacificMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_ba992f5d-bd58-4293-93de-e39f845736da" xlink:to="loc_srt_AsiaPacificMember_3abef291-ff48-4dab-868d-ebaadccf8d0b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_OtherCountriesMember_14cad1b6-c55a-4718-af68-64f41294251e" xlink:href="crwd-20240731.xsd#crwd_OtherCountriesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_ba992f5d-bd58-4293-93de-e39f845736da" xlink:to="loc_crwd_OtherCountriesMember_14cad1b6-c55a-4718-af68-64f41294251e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_0f335ba9-d961-4bfe-ba54-b0d8b9e50986" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_501e7089-d312-46a7-b29b-0f029aa36fed" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_0f335ba9-d961-4bfe-ba54-b0d8b9e50986" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_PercentageOfRevenue_7da21325-489e-4e61-b31e-478b5e17f9b4" xlink:href="crwd-20240731.xsd#crwd_PercentageOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_501e7089-d312-46a7-b29b-0f029aa36fed" xlink:to="loc_crwd_PercentageOfRevenue_7da21325-489e-4e61-b31e-478b5e17f9b4" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/RevenueDeferredRevenueandRemainingPerformanceObligationsAdditionalInformationDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#RevenueDeferredRevenueandRemainingPerformanceObligationsAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/RevenueDeferredRevenueandRemainingPerformanceObligationsAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:href="crwd-20240731.xsd#crwd_ContractWithCustomerLiabilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ContractWithCustomerLiabilityTable_c7b93e8c-e39f-4a6b-932e-ef7563b75846" xlink:href="crwd-20240731.xsd#crwd_ContractWithCustomerLiabilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_crwd_ContractWithCustomerLiabilityTable_c7b93e8c-e39f-4a6b-932e-ef7563b75846" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_597d737e-ea63-4ca9-a400-4bab2f7089e1" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_crwd_ContractWithCustomerLiabilityTable_c7b93e8c-e39f-4a6b-932e-ef7563b75846" xlink:to="loc_srt_RangeAxis_597d737e-ea63-4ca9-a400-4bab2f7089e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_597d737e-ea63-4ca9-a400-4bab2f7089e1_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_597d737e-ea63-4ca9-a400-4bab2f7089e1" xlink:to="loc_srt_RangeMember_597d737e-ea63-4ca9-a400-4bab2f7089e1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_307af975-c601-466a-b83e-11151e0fdde9" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_597d737e-ea63-4ca9-a400-4bab2f7089e1" xlink:to="loc_srt_RangeMember_307af975-c601-466a-b83e-11151e0fdde9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_11a8f140-a1a6-4c92-939b-0e307ee90c2a" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_307af975-c601-466a-b83e-11151e0fdde9" xlink:to="loc_srt_MinimumMember_11a8f140-a1a6-4c92-939b-0e307ee90c2a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_4be7b844-25c3-4273-9d19-db4d617088e1" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_307af975-c601-466a-b83e-11151e0fdde9" xlink:to="loc_srt_MaximumMember_4be7b844-25c3-4273-9d19-db4d617088e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_986dbd15-a495-4152-a894-7698c64b843e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_crwd_ContractWithCustomerLiabilityTable_c7b93e8c-e39f-4a6b-932e-ef7563b75846" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_986dbd15-a495-4152-a894-7698c64b843e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_614c9ae0-7b22-4091-b2fc-40680eee3ff1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_614c9ae0-7b22-4091-b2fc-40680eee3ff1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_RevenueContractLiabilitiesPaymentTerms_7909cb98-5684-45d3-aa2d-07b1ef276021" xlink:href="crwd-20240731.xsd#crwd_RevenueContractLiabilitiesPaymentTerms"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_crwd_RevenueContractLiabilitiesPaymentTerms_7909cb98-5684-45d3-aa2d-07b1ef276021" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_SubscriptionTerm_50c834eb-cd03-4b2c-b1c0-1441468e9a7a" xlink:href="crwd-20240731.xsd#crwd_SubscriptionTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_crwd_SubscriptionTerm_50c834eb-cd03-4b2c-b1c0-1441468e9a7a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_08fb950a-2b24-4cbe-98c8-b4a272868efb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_08fb950a-2b24-4cbe-98c8-b4a272868efb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationPercentage_dd155dfb-7a27-4f15-93c5-5e2646c8c511" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueRemainingPerformanceObligationPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationPercentage_dd155dfb-7a27-4f15-93c5-5e2646c8c511" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_aa8b5ef2-e139-471b-89cc-35efeb5f8e6c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_aa8b5ef2-e139-471b-89cc-35efeb5f8e6c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_RevenueAmortizationOverEstimatedBenefitForCommissionIncludingReferralFeesPaid_bdbb254d-c9a4-48a7-a094-7b324620dd92" xlink:href="crwd-20240731.xsd#crwd_RevenueAmortizationOverEstimatedBenefitForCommissionIncludingReferralFeesPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_crwd_RevenueAmortizationOverEstimatedBenefitForCommissionIncludingReferralFeesPaid_bdbb254d-c9a4-48a7-a094-7b324620dd92" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_RevenueAmortizationOverEstimatedBenefitForSalesCommission_8390cf88-66bb-45c9-ab7b-433529632dd0" xlink:href="crwd-20240731.xsd#crwd_RevenueAmortizationOverEstimatedBenefitForSalesCommission"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_crwd_RevenueAmortizationOverEstimatedBenefitForSalesCommission_8390cf88-66bb-45c9-ab7b-433529632dd0" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostImpairmentLoss_b15d23fb-70d9-4c20-a311-2b0c46577707" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CapitalizedContractCostImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_us-gaap_CapitalizedContractCostImpairmentLoss_b15d23fb-70d9-4c20-a311-2b0c46577707" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/RevenueDeferredRevenueandRemainingPerformanceObligationsAdditionalInformationDetails_1" xlink:type="simple" xlink:href="crwd-20240731.xsd#RevenueDeferredRevenueandRemainingPerformanceObligationsAdditionalInformationDetails_1"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/RevenueDeferredRevenueandRemainingPerformanceObligationsAdditionalInformationDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:href="crwd-20240731.xsd#crwd_ContractWithCustomerLiabilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ContractWithCustomerLiabilityTable_c7b93e8c-e39f-4a6b-932e-ef7563b75846" xlink:href="crwd-20240731.xsd#crwd_ContractWithCustomerLiabilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_crwd_ContractWithCustomerLiabilityTable_c7b93e8c-e39f-4a6b-932e-ef7563b75846" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_597d737e-ea63-4ca9-a400-4bab2f7089e1" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_crwd_ContractWithCustomerLiabilityTable_c7b93e8c-e39f-4a6b-932e-ef7563b75846" xlink:to="loc_srt_RangeAxis_597d737e-ea63-4ca9-a400-4bab2f7089e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_597d737e-ea63-4ca9-a400-4bab2f7089e1_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_597d737e-ea63-4ca9-a400-4bab2f7089e1" xlink:to="loc_srt_RangeMember_597d737e-ea63-4ca9-a400-4bab2f7089e1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_307af975-c601-466a-b83e-11151e0fdde9" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_597d737e-ea63-4ca9-a400-4bab2f7089e1" xlink:to="loc_srt_RangeMember_307af975-c601-466a-b83e-11151e0fdde9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_11a8f140-a1a6-4c92-939b-0e307ee90c2a" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_307af975-c601-466a-b83e-11151e0fdde9" xlink:to="loc_srt_MinimumMember_11a8f140-a1a6-4c92-939b-0e307ee90c2a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_4be7b844-25c3-4273-9d19-db4d617088e1" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_307af975-c601-466a-b83e-11151e0fdde9" xlink:to="loc_srt_MaximumMember_4be7b844-25c3-4273-9d19-db4d617088e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_614c9ae0-7b22-4091-b2fc-40680eee3ff1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_614c9ae0-7b22-4091-b2fc-40680eee3ff1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_RevenueContractLiabilitiesPaymentTerms_7909cb98-5684-45d3-aa2d-07b1ef276021" xlink:href="crwd-20240731.xsd#crwd_RevenueContractLiabilitiesPaymentTerms"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_crwd_RevenueContractLiabilitiesPaymentTerms_7909cb98-5684-45d3-aa2d-07b1ef276021" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_SubscriptionTerm_50c834eb-cd03-4b2c-b1c0-1441468e9a7a" xlink:href="crwd-20240731.xsd#crwd_SubscriptionTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_crwd_SubscriptionTerm_50c834eb-cd03-4b2c-b1c0-1441468e9a7a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_08fb950a-2b24-4cbe-98c8-b4a272868efb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_08fb950a-2b24-4cbe-98c8-b4a272868efb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationPercentage_dd155dfb-7a27-4f15-93c5-5e2646c8c511" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueRemainingPerformanceObligationPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationPercentage_dd155dfb-7a27-4f15-93c5-5e2646c8c511" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_aa8b5ef2-e139-471b-89cc-35efeb5f8e6c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_aa8b5ef2-e139-471b-89cc-35efeb5f8e6c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_RevenueAmortizationOverEstimatedBenefitForCommissionIncludingReferralFeesPaid_bdbb254d-c9a4-48a7-a094-7b324620dd92" xlink:href="crwd-20240731.xsd#crwd_RevenueAmortizationOverEstimatedBenefitForCommissionIncludingReferralFeesPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_crwd_RevenueAmortizationOverEstimatedBenefitForCommissionIncludingReferralFeesPaid_bdbb254d-c9a4-48a7-a094-7b324620dd92" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_RevenueAmortizationOverEstimatedBenefitForSalesCommission_8390cf88-66bb-45c9-ab7b-433529632dd0" xlink:href="crwd-20240731.xsd#crwd_RevenueAmortizationOverEstimatedBenefitForSalesCommission"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_crwd_RevenueAmortizationOverEstimatedBenefitForSalesCommission_8390cf88-66bb-45c9-ab7b-433529632dd0" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostImpairmentLoss_b15d23fb-70d9-4c20-a311-2b0c46577707" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CapitalizedContractCostImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_crwd_ContractWithCustomerLiabilityLineItems_af7098af-026c-4e41-981a-bda5266c126f" xlink:to="loc_us-gaap_CapitalizedContractCostImpairmentLoss_b15d23fb-70d9-4c20-a311-2b0c46577707" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/AcquisitionsAdditionalInformationDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#AcquisitionsAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/AcquisitionsAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_61c6c351-fa9c-4be7-b2ad-7c0194966723" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable_62331d48-d094-4577-8189-abe086f97e93" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_61c6c351-fa9c-4be7-b2ad-7c0194966723" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable_62331d48-d094-4577-8189-abe086f97e93" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_2b6d0bb3-cfdd-41ba-91e0-b6558496ebbb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable_62331d48-d094-4577-8189-abe086f97e93" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_2b6d0bb3-cfdd-41ba-91e0-b6558496ebbb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_2b6d0bb3-cfdd-41ba-91e0-b6558496ebbb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_2b6d0bb3-cfdd-41ba-91e0-b6558496ebbb" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_2b6d0bb3-cfdd-41ba-91e0-b6558496ebbb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_28c845dc-12a4-47bf-b6e5-c0a2034e9a21" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_2b6d0bb3-cfdd-41ba-91e0-b6558496ebbb" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_28c845dc-12a4-47bf-b6e5-c0a2034e9a21" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_FlowSecurityMember_b64c5841-2c80-4571-9084-765874105f47" xlink:href="crwd-20240731.xsd#crwd_FlowSecurityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_28c845dc-12a4-47bf-b6e5-c0a2034e9a21" xlink:to="loc_crwd_FlowSecurityMember_b64c5841-2c80-4571-9084-765874105f47" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_BionicMember_d7666718-27ba-46d5-b9d6-7a828e9b6f7e" xlink:href="crwd-20240731.xsd#crwd_BionicMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_28c845dc-12a4-47bf-b6e5-c0a2034e9a21" xlink:to="loc_crwd_BionicMember_d7666718-27ba-46d5-b9d6-7a828e9b6f7e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_9004dfbc-53e6-4c66-8047-f3db47f27f51" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable_62331d48-d094-4577-8189-abe086f97e93" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_9004dfbc-53e6-4c66-8047-f3db47f27f51" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_9004dfbc-53e6-4c66-8047-f3db47f27f51_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_9004dfbc-53e6-4c66-8047-f3db47f27f51" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_9004dfbc-53e6-4c66-8047-f3db47f27f51_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_9c4d3931-cebe-4c82-8376-606a0a68ef4d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_9004dfbc-53e6-4c66-8047-f3db47f27f51" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_9c4d3931-cebe-4c82-8376-606a0a68ef4d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_079bc201-2fc6-4292-bd95-d61015b4b143" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_9c4d3931-cebe-4c82-8376-606a0a68ef4d" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_079bc201-2fc6-4292-bd95-d61015b4b143" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_79b54752-e096-400e-b1f7-0a3e968cd91c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_61c6c351-fa9c-4be7-b2ad-7c0194966723" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_79b54752-e096-400e-b1f7-0a3e968cd91c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_c520eed6-801f-4bfd-b2d6-4f3f4da74b8b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_61c6c351-fa9c-4be7-b2ad-7c0194966723" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_c520eed6-801f-4bfd-b2d6-4f3f4da74b8b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAcquiredFromAcquisition_edebfdfd-2e67-4db9-87c1-0471db5b86cd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAcquiredFromAcquisition"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_61c6c351-fa9c-4be7-b2ad-7c0194966723" xlink:to="loc_us-gaap_CashAcquiredFromAcquisition_edebfdfd-2e67-4db9-87c1-0471db5b86cd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_ac2b85a4-0795-4d26-b6bb-927ffa268282" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_61c6c351-fa9c-4be7-b2ad-7c0194966723" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_ac2b85a4-0795-4d26-b6bb-927ffa268282" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_7b306390-ab2d-42a8-932e-d8a585ad9717" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_61c6c351-fa9c-4be7-b2ad-7c0194966723" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_7b306390-ab2d-42a8-932e-d8a585ad9717" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_d2cba4f5-f769-424d-a292-609d66d16705" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_61c6c351-fa9c-4be7-b2ad-7c0194966723" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_d2cba4f5-f769-424d-a292-609d66d16705" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_5b8b9edc-4f65-4f76-914a-c36c70a2fb5a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_61c6c351-fa9c-4be7-b2ad-7c0194966723" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_5b8b9edc-4f65-4f76-914a-c36c70a2fb5a" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_c9e85abd-8ef9-49ac-ba1f-525518bb4b79" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_61c6c351-fa9c-4be7-b2ad-7c0194966723" xlink:to="loc_us-gaap_Goodwill_c9e85abd-8ef9-49ac-ba1f-525518bb4b79" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportingUnits_1a91d703-8e45-4733-ad71-a2918cf05360" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NumberOfReportingUnits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_61c6c351-fa9c-4be7-b2ad-7c0194966723" xlink:to="loc_us-gaap_NumberOfReportingUnits_1a91d703-8e45-4733-ad71-a2918cf05360" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_a2feb33e-ff19-4467-b2db-328917290bee" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_61c6c351-fa9c-4be7-b2ad-7c0194966723" xlink:to="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_a2feb33e-ff19-4467-b2db-328917290bee" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/AcquisitionsIdentifiableIntangibleAssetsDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#AcquisitionsIdentifiableIntangibleAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/AcquisitionsIdentifiableIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_de1b6ac8-51d9-48d3-a241-afd522aadeaa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable_892e7f41-1b88-4bdb-ab98-134f1973ad1a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_de1b6ac8-51d9-48d3-a241-afd522aadeaa" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable_892e7f41-1b88-4bdb-ab98-134f1973ad1a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_b5c1cb6b-a0eb-4ba4-ad8d-f526d658f408" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable_892e7f41-1b88-4bdb-ab98-134f1973ad1a" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_b5c1cb6b-a0eb-4ba4-ad8d-f526d658f408" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_b5c1cb6b-a0eb-4ba4-ad8d-f526d658f408_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_b5c1cb6b-a0eb-4ba4-ad8d-f526d658f408" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_b5c1cb6b-a0eb-4ba4-ad8d-f526d658f408_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_11ba491c-cb30-48f1-b361-759f3a3ffd1b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_b5c1cb6b-a0eb-4ba4-ad8d-f526d658f408" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_11ba491c-cb30-48f1-b361-759f3a3ffd1b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_BionicMember_3bd67c99-d596-4ccf-a12c-d305286ea0c2" xlink:href="crwd-20240731.xsd#crwd_BionicMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_11ba491c-cb30-48f1-b361-759f3a3ffd1b" xlink:to="loc_crwd_BionicMember_3bd67c99-d596-4ccf-a12c-d305286ea0c2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_5ac98138-8dcc-4c4b-a21a-41946746fc6e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable_892e7f41-1b88-4bdb-ab98-134f1973ad1a" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_5ac98138-8dcc-4c4b-a21a-41946746fc6e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_5ac98138-8dcc-4c4b-a21a-41946746fc6e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_5ac98138-8dcc-4c4b-a21a-41946746fc6e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_5ac98138-8dcc-4c4b-a21a-41946746fc6e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01eb4e87-7a5b-43b5-aeb4-e956d0397526" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_5ac98138-8dcc-4c4b-a21a-41946746fc6e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01eb4e87-7a5b-43b5-aeb4-e956d0397526" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_b7932bb2-41ca-4e31-825d-b4e3df4431bb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01eb4e87-7a5b-43b5-aeb4-e956d0397526" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_b7932bb2-41ca-4e31-825d-b4e3df4431bb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_f80f3fb8-c4ac-42b2-b95c-1e3a0e098d02" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01eb4e87-7a5b-43b5-aeb4-e956d0397526" xlink:to="loc_us-gaap_CustomerRelationshipsMember_f80f3fb8-c4ac-42b2-b95c-1e3a0e098d02" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_0e143284-a3f2-472b-b664-83cbe2184f87" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_de1b6ac8-51d9-48d3-a241-afd522aadeaa" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_0e143284-a3f2-472b-b664-83cbe2184f87" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_b41eb332-d5f4-4013-bbce-d3b20bb2682d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_de1b6ac8-51d9-48d3-a241-afd522aadeaa" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_b41eb332-d5f4-4013-bbce-d3b20bb2682d" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowdstrike.com/role/NetIncomePerShareAttributabletoCommonStockholdersAntidilutiveSecuritiesDetails" xlink:type="simple" xlink:href="crwd-20240731.xsd#NetIncomePerShareAttributabletoCommonStockholdersAntidilutiveSecuritiesDetails"/>
  <link:definitionLink xlink:role="http://www.crowdstrike.com/role/NetIncomePerShareAttributabletoCommonStockholdersAntidilutiveSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_2988ad3f-80ff-450d-9bc6-89786e43c801" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_d3e20697-3356-4b63-978c-4dfea4d4338d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_2988ad3f-80ff-450d-9bc6-89786e43c801" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_d3e20697-3356-4b63-978c-4dfea4d4338d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_3df60c68-c974-4351-b705-51deb1ce1340" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_d3e20697-3356-4b63-978c-4dfea4d4338d" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_3df60c68-c974-4351-b705-51deb1ce1340" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_3df60c68-c974-4351-b705-51deb1ce1340_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_3df60c68-c974-4351-b705-51deb1ce1340" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_3df60c68-c974-4351-b705-51deb1ce1340_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_35aaede0-9e3f-40c4-9b6b-b9daba16040b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_3df60c68-c974-4351-b705-51deb1ce1340" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_35aaede0-9e3f-40c4-9b6b-b9daba16040b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_RSUAndPSUMember_0751cd29-83f9-42a4-bd9f-7691e994fd36" xlink:href="crwd-20240731.xsd#crwd_RSUAndPSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_35aaede0-9e3f-40c4-9b6b-b9daba16040b" xlink:to="loc_crwd_RSUAndPSUMember_0751cd29-83f9-42a4-bd9f-7691e994fd36" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_e28ce42d-7cb9-439d-95d8-004116c316ee" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_35aaede0-9e3f-40c4-9b6b-b9daba16040b" xlink:to="loc_us-gaap_EmployeeStockMember_e28ce42d-7cb9-439d-95d8-004116c316ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_e0f97b8a-2bd1-4429-b2d4-162be55e2ac8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_2988ad3f-80ff-450d-9bc6-89786e43c801" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_e0f97b8a-2bd1-4429-b2d4-162be55e2ac8" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/AwardTypeOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#AwardTypeOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/ecd/AwardTypeOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ServiceBasedRestrictedStockUnitsVestingMember_bf4dc9d8-bb28-4d71-b7b9-9f63adfeedbb" xlink:href="crwd-20240731.xsd#crwd_ServiceBasedRestrictedStockUnitsVestingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_crwd_ServiceBasedRestrictedStockUnitsVestingMember_bf4dc9d8-bb28-4d71-b7b9-9f63adfeedbb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_PerformanceBasedStockUnitsMember_799df699-3151-4e3d-92e3-fdfda84ad827" xlink:href="crwd-20240731.xsd#crwd_PerformanceBasedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_crwd_PerformanceBasedStockUnitsMember_799df699-3151-4e3d-92e3-fdfda84ad827" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_SpecialPerformanceBasedStockUnitsMember_56da4eab-bb49-4a55-a564-a795777e2806" xlink:href="crwd-20240731.xsd#crwd_SpecialPerformanceBasedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_crwd_SpecialPerformanceBasedStockUnitsMember_56da4eab-bb49-4a55-a564-a795777e2806" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_ShareBasedCompensationAwardOtherThanStockOptionsMember_bb4a5497-2090-4b2a-9ebf-295565bf4396" xlink:href="crwd-20240731.xsd#crwd_ShareBasedCompensationAwardOtherThanStockOptionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_crwd_ShareBasedCompensationAwardOtherThanStockOptionsMember_bb4a5497-2090-4b2a-9ebf-295565bf4396" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_EmployeeStockMember" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/IndividualsOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#IndividualsOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/ecd/role/IndividualsOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AllIndividualsMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_crwd_SameerGandhiMember_3663bbb5-96dc-4c89-a520-febf242b1c17" xlink:href="crwd-20240731.xsd#crwd_SameerGandhiMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ecd_AllIndividualsMember" xlink:to="loc_crwd_SameerGandhiMember_3663bbb5-96dc-4c89-a520-febf242b1c17" xlink:type="arc" order="2"/>
  </link:definitionLink>
</link:linkbase>
