<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by Broadridge Transform (tm) - http://www.broadridge.com -->
<!-- Created: Tue Apr 21 00:10:33 UTC 2026 -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <roleRef xlink:type="simple" xlink:href="crwd-20260131.xsd#crwd_r_AdditionalDimensions" roleURI="http://www.crowdstrike.com/role/AdditionalDimensions"/>
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#PvpAdjustmentsOnly" roleURI="http://xbrl.sec.gov/ecd/role/PvpAdjustmentsOnly"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" arcroleURI="http://xbrl.org/int/dim/arcrole/all"/>
  <definitionLink xlink:role="http://www.crowdstrike.com/role/AdditionalDimensions" xlink:type="extended"/>
  <definitionLink xlink:role="http://xbrl.sec.gov/ecd/role/PvpAdjustmentsOnly" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ecd_AllAdjToCompMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllAdjToCompMember"/>
    <loc xlink:type="locator" xlink:label="crwd_EquityAwardsAdjustmentsMember" xlink:href="crwd-20260131.xsd#crwd_EquityAwardsAdjustmentsMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ecd_AllAdjToCompMember" xlink:to="crwd_EquityAwardsAdjustmentsMember" order="5" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="crwd_FairValueOfAwardsForfeitedDuringTheCoveredYearMember" xlink:href="crwd-20260131.xsd#crwd_FairValueOfAwardsForfeitedDuringTheCoveredYearMember"/>
<!-- [WMV7][49H+5zy3p+/3hfIrOUmrrMTnaWE5KxqyglokKNXfHJWyalNZfkxGmSrJtIl9Rt7nvomPtZQnKTVAYXvCw5cL85YNVbSshsT06Z032mgtxHqjQEKqpoXp4motJ2knL1uIKvCJvYMbYZZli4Jr7/2oucKGAORE8Iqkx39A63dIxTbsLjcZgUgK2Kia8vz/T1RpMcn88tckNj/WeJH2xGPdpy4p/6gnMxkDOIVgRhsPk9dVC1LNqZkB/iYw8X8w9RqJmLSoQC4BMESsEmanVMv9Y+aXbmzbADNR7lQ31MVfFw0jMt7GvDNVIt0rks4=] CSR-->
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="crwd_EquityAwardsAdjustmentsMember" xlink:to="crwd_FairValueOfAwardsForfeitedDuringTheCoveredYearMember" order="1" xbrldt:closed="true"/>
  </definitionLink>
</linkbase>
