content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001194247</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000899923</issuerCik>
        <issuerName>MYRIAD GENETICS INC</issuerName>
        <secFileNumber>000-26642</secFileNumber>
        <issuerAddress>
          <com:street1>322 NORTH 2200 WEST</com:street1>
          <com:city>SALT LAKE CITY</com:city>
          <com:stateOrCountry>UT</com:stateOrCountry>
          <com:zipCode>84116</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>801-584-3600</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>DIAZ PAUL J</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>900 Salem Street</com:street1>
            <com:city>Smithfield</com:city>
            <com:stateOrCountry>RI</com:stateOrCountry>
            <com:zipCode>02917</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>75000</noOfUnitsSold>
        <aggregateMarketValue>1880413.98</aggregateMarketValue>
        <noOfUnitsOutstanding>90507981</noOfUnitsOutstanding>
        <approxSaleDate>05/15/2024</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>08/13/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>75000</amountOfSecuritiesAcquired>
        <paymentDate>08/13/2022</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Paul Diaz</name>
          <address>
            <com:street1>322 North 2200 West</com:street1>
            <com:city>Salt Lake City</com:city>
            <com:stateOrCountry>UT</com:stateOrCountry>
            <com:zipCode>84116</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>05/13/2024</saleDate>
        <amountOfSecuritiesSold>57844</amountOfSecuritiesSold>
        <grossProceeds>1453552.07</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Paul Diaz</name>
          <address>
            <com:street1>322 North 2200 West</com:street1>
            <com:city>Salt Lake City</com:city>
            <com:stateOrCountry>UT</com:stateOrCountry>
            <com:zipCode>84116</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>05/14/2024</saleDate>
        <amountOfSecuritiesSold>95000</amountOfSecuritiesSold>
        <grossProceeds>2394798.75</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>05/15/2024</noticeDate>
        <signature>/s/ Emily Navaro, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for  Paul Diaz.</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 4069}]
text: 144
  0001194247
  XXXXXXXX
  LIVE
  0000899923
  MYRIAD GENETICS INC
  000-26642
  322 NORTH 2200 WEST
  SALT LAKE CITY
  UT
  84116
  801-584-3600
  DIAZ PAUL J
  Officer
  Director
  Common
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  75000
  1880413.98
  90507981
  05/15/2024
  NASDAQ
  Common
  08/13/2022
  Restricted Stock Vesting
  Issuer
  N
  75000
  08/13/2022
  Compensation
  N
  Paul Diaz
  322 North 2200 West
  Salt Lake City
  UT
  84116
  Common
  05/13/2024
  57844
  1453552.07
  Paul Diaz
  322 North 2200 West
  Salt Lake City
  UT
  84116
  Common
  05/14/2024
  95000
  2394798.75
  05/15/2024
  /s/ Emily Navaro, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for  Paul Diaz.