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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:01a1a365-e2f3-7c52-99a0-1c00a61adb0c,g:05291b7d-e7d4-40c3-988f-3bbbd4344bf2-->
<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-20261029.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_01a1a365-e2f3-78e5-8bba-8e0e132ef396" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityListingsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityListingsTable_01a1a365-e2f3-7c9d-82df-ddb8f2289d84" 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_01a1a365-e2f3-78e5-8bba-8e0e132ef396" xlink:to="loc_dei_EntityListingsTable_01a1a365-e2f3-7c9d-82df-ddb8f2289d84" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_01a1a365-e2f3-767d-b84b-889e53430bf5" 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_01a1a365-e2f3-7c9d-82df-ddb8f2289d84" xlink:to="loc_us-gaap_StatementClassOfStockAxis_01a1a365-e2f3-767d-b84b-889e53430bf5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a1a365-e2f3-767d-b84b-889e53430bf5_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_01a1a365-e2f3-767d-b84b-889e53430bf5" xlink:to="loc_us-gaap_ClassOfStockDomain_01a1a365-e2f3-767d-b84b-889e53430bf5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockMember_01a1a365-e2f3-75bc-ba5f-9245e871b020" 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_01a1a365-e2f3-767d-b84b-889e53430bf5" xlink:to="loc_us-gaap_PreferredStockMember_01a1a365-e2f3-75bc-ba5f-9245e871b020" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_01a1a365-e2f3-7bc4-80b6-ab17ae897198" 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_01a1a365-e2f3-767d-b84b-889e53430bf5" xlink:to="loc_us-gaap_CommonStockMember_01a1a365-e2f3-7bc4-80b6-ab17ae897198" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a1a365-e2f3-731a-8974-b6f851b8b10e" 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_01a1a365-e2f3-767d-b84b-889e53430bf5" xlink:to="loc_us-gaap_ClassOfStockDomain_01a1a365-e2f3-731a-8974-b6f851b8b10e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_01a1a365-e2f3-74c5-87f3-e4540ae51aa0" 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_01a1a365-e2f3-78e5-8bba-8e0e132ef396" xlink:to="loc_dei_Security12bTitle_01a1a365-e2f3-74c5-87f3-e4540ae51aa0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_01a1a365-e2f3-7ea3-a4e1-a5be2323aaa3" 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_01a1a365-e2f3-78e5-8bba-8e0e132ef396" xlink:to="loc_dei_SecurityExchangeName_01a1a365-e2f3-7ea3-a4e1-a5be2323aaa3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_01a1a365-e2f3-7382-8e10-d3654c492c22" 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_01a1a365-e2f3-78e5-8bba-8e0e132ef396" xlink:to="loc_dei_TradingSymbol_01a1a365-e2f3-7382-8e10-d3654c492c22" xlink:type="arc" order="2"/>
  </link:definitionLink>
</link:linkbase>
