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>
            <!-- Field: Pseudo-Tag; ID: Name; Data: Guzowski Christopher -->
            <cik>0002000969</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001878848</issuerCik>
        <issuerName>Iris Energy Ltd</issuerName>
        <secFileNumber>001-41072</secFileNumber>
        <issuerAddress>
          <com:street1>Level 12, 44 Market Street</com:street1>
          <com:city>Sydney</com:city>
          <com:stateOrCountry>C3</com:stateOrCountry>
          <com:zipCode>NSW 2000</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>212-906-1200</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Christopher Guzowski</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Ordinary shares, no par value ("Ordinary shares")</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Citigroup Global Markets</name>
          <address>
            <com:street1>390 Greenwich St</com:street1>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10013</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>28970</noOfUnitsSold>
        <aggregateMarketValue>223938.10</aggregateMarketValue>
        <noOfUnitsOutstanding>187864454</noOfUnitsOutstanding>
        <approxSaleDate>09/17/2024</approxSaleDate>
        <securitiesExchangeName>Nasdaq</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Ordinary shares</securitiesClassTitle>
        <acquiredDate>07/01/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Remuneration for board membership</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Iris Energy Limited</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>28970</amountOfSecuritiesAcquired>
        <paymentDate>07/01/2023</paymentDate>
        <natureOfPayment>Remuneration for board membership</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>Aggregate Market Value of shares calculated based on a closing share price of $7.73 on September 16, 2024.</remarks>
      <noticeSignature>
        <noticeDate>09/17/2024</noticeDate>
        <signature>/s/ Christopher Guzowski</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3031}]
text: 144
  0002000969
  XXXXXXXX
  LIVE
  0001878848
  Iris Energy Ltd
  001-41072
  Level 12, 44 Market Street
  Sydney
  C3
  NSW 2000
  212-906-1200
  Christopher Guzowski
  Director
  Ordinary shares, no par value ("Ordinary shares")
  Citigroup Global Markets
  390 Greenwich St
  New York
  NY
  10013
  28970
  223938.10
  187864454
  09/17/2024
  Nasdaq
  Ordinary shares
  07/01/2023
  Remuneration for board membership
  Iris Energy Limited
  N
  28970
  07/01/2023
  Remuneration for board membership
  Y
  Aggregate Market Value of shares calculated based on a closing share price of $7.73 on September 16, 2024.
  09/17/2024
  /s/ Christopher Guzowski