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>0001661555</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001122976</issuerCik>
        <issuerName>AVIENT CORP</issuerName>
        <secFileNumber>001-16091</secFileNumber>
        <issuerAddress>
          <com:street1>33587 WALKER ROAD</com:street1>
          <com:city>AVON LAKE</com:city>
          <com:stateOrCountry>OH</com:stateOrCountry>
          <com:zipCode>44012</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>440-930-1000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Rathbun Joel R.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Former Officer</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>2731</noOfUnitsSold>
        <aggregateMarketValue>103291.34</aggregateMarketValue>
        <noOfUnitsOutstanding>91439343</noOfUnitsOutstanding>
        <approxSaleDate>03/21/2025</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/14/2025</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2731</amountOfSecuritiesAcquired>
        <paymentDate>02/14/2025</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Joel R. Rathbun</name>
          <address>
            <com:street1>33587 Walker Road</com:street1>
            <com:city>Avon Lake</com:city>
            <com:stateOrCountry>OH</com:stateOrCountry>
            <com:zipCode>44012</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>03/17/2025</saleDate>
        <amountOfSecuritiesSold>2966</amountOfSecuritiesSold>
        <grossProceeds>120300.96</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>03/21/2025</noticeDate>
        <signature>/s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Joel R. Rathbun</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
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text: 144
  0001661555
  XXXXXXXX
  LIVE
  0001122976
  AVIENT CORP
  001-16091
  33587 WALKER ROAD
  AVON LAKE
  OH
  44012
  440-930-1000
  Rathbun Joel R.
  Former Officer
  Common
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  2731
  103291.34
  91439343
  03/21/2025
  NYSE
  Common
  02/14/2025
  Restricted Stock Vesting
  Issuer
  N
  2731
  02/14/2025
  Compensation
  N
  Joel R. Rathbun
  33587 Walker Road
  Avon Lake
  OH
  44012
  Common
  03/17/2025
  2966
  120300.96
  03/21/2025
  /s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Joel R. Rathbun