<?xml version="1.0" encoding="US-ASCII"?>  
<!-- Generated by CompSci Transform (tm) - http://www.compsciresources.com -->    
<!-- Created: Fri Mar 06 22:13:23 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="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#IndividualsOnly" roleURI="http://xbrl.sec.gov/ecd/role/IndividualsOnly"/>     
  <roleRef xlink:type="simple" xlink:href="hum-20251231.xsd#hum_r_AdditionalDimensions" roleURI="http://www.humana.com/role/AdditionalDimensions"/>   
  <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://xbrl.sec.gov/ecd/role/IndividualsOnly" xlink:type="extended">    
    <loc xlink:type="locator" xlink:label="ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllIndividualsMember"/>  
    <loc xlink:type="locator" xlink:label="hum_MrRechtinMember" xlink:href="hum-20251231.xsd#hum_MrRechtinMember"/> 
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ecd_AllIndividualsMember" xlink:to="hum_MrRechtinMember" order="2" xbrldt:closed="true"/>     
    <loc xlink:type="locator" xlink:label="hum_MrBroussardMember" xlink:href="hum-20251231.xsd#hum_MrBroussardMember"/>     
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ecd_AllIndividualsMember" xlink:to="hum_MrBroussardMember" order="4" xbrldt:closed="true"/>  
  </definitionLink>     
<!-- [WMV6][OtF9qqoZLTZ/328Dw2IvlxppH0rASCZN8z8ep2YbPnl5h9YDeERT5EItUbbn23X5lGrOd3IkXeVVCc5Al4Uh2yIUzBi6EBBWmo6hqMoEf0hyhFoQfjIjqY3EJpmpt+zsT1uLLvA8O5QjovRqJSKmXBrLajZ3DOFaTOBqauX6dO/bb74Vz5N7cL5SIchfjZPNyCHuwQ2qKHdwBitXYNiVjXFnkjSyliYgNQDuK7MKRN3GNIis0thHSCB++FXuTUsVeNdZFTGHiDbBknpohbrq5pfe4FipE8x3zw5gWduWfUxyzqZGStaELrgeNw==] CSR-->  
  <definitionLink xlink:role="http://www.humana.com/role/AdditionalDimensions" xlink:type="extended"/>   
</linkbase>
