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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:01a0edbc-b0fd-7d77-ade8-cf470f230182,g:afa4b319-9cf2-4cf7-8ada-766ef57390b1-->
<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.klxenergy.com/role/CoverPage" xlink:type="simple" xlink:href="klxe-20260929.xsd#CoverPage"/>
  <link:definitionLink xlink:role="http://www.klxenergy.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityListingsLineItems_01a0edd5-f749-774c-9ce0-e20dda2cf695" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityListingsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityListingsTable_01a0edd5-f749-73ae-afb8-16d9b2b3118f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityListingsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_EntityListingsLineItems_01a0edd5-f749-774c-9ce0-e20dda2cf695" xlink:to="loc_dei_EntityListingsTable_01a0edd5-f749-73ae-afb8-16d9b2b3118f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_01a0edd5-f749-7cd3-b43c-0c00d264b388" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntityListingsTable_01a0edd5-f749-73ae-afb8-16d9b2b3118f" xlink:to="loc_us-gaap_StatementClassOfStockAxis_01a0edd5-f749-7cd3-b43c-0c00d264b388" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a0edd5-f749-7cd3-b43c-0c00d264b388_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a0edd5-f749-7cd3-b43c-0c00d264b388" xlink:to="loc_us-gaap_ClassOfStockDomain_01a0edd5-f749-7cd3-b43c-0c00d264b388_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockMember_01a0eebd-0ac6-7bf6-aab8-6cf8686121a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a0edd5-f749-7cd3-b43c-0c00d264b388" xlink:to="loc_us-gaap_PreferredStockMember_01a0eebd-0ac6-7bf6-aab8-6cf8686121a9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_01a0eebc-c0b0-76ed-8ac4-e715c683ce44" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a0edd5-f749-7cd3-b43c-0c00d264b388" xlink:to="loc_us-gaap_CommonStockMember_01a0eebc-c0b0-76ed-8ac4-e715c683ce44" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a0eebf-2001-7791-bc0f-5e14fda74aa4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a0edd5-f749-7cd3-b43c-0c00d264b388" xlink:to="loc_us-gaap_ClassOfStockDomain_01a0eebf-2001-7791-bc0f-5e14fda74aa4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_01a0edd5-f749-7274-87f8-2b2909345e46" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityListingsLineItems_01a0edd5-f749-774c-9ce0-e20dda2cf695" xlink:to="loc_dei_Security12bTitle_01a0edd5-f749-7274-87f8-2b2909345e46" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_01a0edd7-342b-73b2-8062-dbab615e44d3" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityListingsLineItems_01a0edd5-f749-774c-9ce0-e20dda2cf695" xlink:to="loc_dei_SecurityExchangeName_01a0edd7-342b-73b2-8062-dbab615e44d3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_01a0eed5-91c7-7a68-97e0-3644516b7e63" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityListingsLineItems_01a0edd5-f749-774c-9ce0-e20dda2cf695" xlink:to="loc_dei_TradingSymbol_01a0eed5-91c7-7a68-97e0-3644516b7e63" xlink:type="arc" order="2"/>
  </link:definitionLink>
</link:linkbase>
