<?xml version="1.0" encoding="UTF-8"?>
<edgarSubmission xmlns:ns1="http://www.sec.gov/edgar/common" xmlns="http://www.sec.gov/edgar/thirteenffiler">
  <headerData>
    <submissionType>13F-HR</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <flags>
        <confirmingCopyFlag>false</confirmingCopyFlag>
        <returnCopyFlag>false</returnCopyFlag>
        <overrideInternetFlag>false</overrideInternetFlag>
      </flags>
      <filer>
        <credentials>
          <cik>0001548392</cik>
          <ccc>XXXXXXXX</ccc>
        </credentials>
      </filer>
      <periodOfReport>09-30-2020</periodOfReport>
    </filerInfo>
  </headerData>
  <formData>
    <coverPage>
      <reportCalendarOrQuarter>09-30-2020</reportCalendarOrQuarter>
      <isAmendment>false</isAmendment>
      <filingManager>
        <name>Utah Retirement Systems</name>
        <address>
          <ns1:street1>540 EAST 200 SOUTH</ns1:street1>
          <ns1:city>SALT LAKE CITY</ns1:city>
          <ns1:stateOrCountry>UT</ns1:stateOrCountry>
          <ns1:zipCode>84102</ns1:zipCode>
        </address>
      </filingManager>
      <reportType>13F HOLDINGS REPORT</reportType>
      <form13FFileNumber>028-15080</form13FFileNumber>
      <provideInfoForInstruction5>N</provideInfoForInstruction5>
    </coverPage>
    <signatureBlock>
      <name>David Bjarnason</name>
      <title>Chief Compliance Officer - Investments</title>
      <phone>801-366-7460</phone>
      <signature>/s/ David Bjarnason</signature>
      <city>Salt Lake City</city>
      <stateOrCountry>UT</stateOrCountry>
      <signatureDate>11-16-2020</signatureDate>
    </signatureBlock>
    <summaryPage>
      <otherIncludedManagersCount>0</otherIncludedManagersCount>
      <tableEntryTotal>928</tableEntryTotal>
      <tableValueTotal>6024670</tableValueTotal>
      <isConfidentialOmitted>false</isConfidentialOmitted>
    </summaryPage>
  </formData>
</edgarSubmission>
