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>0001898032</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000315293</issuerCik>
        <issuerName>Aon plc</issuerName>
        <secFileNumber>001-07933</secFileNumber>
        <issuerAddress>
          <com:street1>15 GEORGES QUAY</com:street1>
          <com:city>DUBLIN 2</com:city>
          <com:stateOrCountry>L2</com:stateOrCountry>
          <com:zipCode>D02 VR98</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>35312666000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Slyfield Jillian</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Class A</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>260</noOfUnitsSold>
        <aggregateMarketValue>100063.16</aggregateMarketValue>
        <noOfUnitsOutstanding>216266278</noOfUnitsOutstanding>
        <approxSaleDate>02/10/2025</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Class A</securitiesClassTitle>
        <acquiredDate>02/22/2021</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>34</amountOfSecuritiesAcquired>
        <paymentDate>02/22/2021</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Class A</securitiesClassTitle>
        <acquiredDate>03/13/2021</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>75</amountOfSecuritiesAcquired>
        <paymentDate>03/13/2021</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Class A</securitiesClassTitle>
        <acquiredDate>03/15/2021</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>92</amountOfSecuritiesAcquired>
        <paymentDate>03/15/2021</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Class A</securitiesClassTitle>
        <acquiredDate>05/21/2021</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>59</amountOfSecuritiesAcquired>
        <paymentDate>05/21/2021</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>02/10/2025</noticeDate>
        <signature>/s/ Margaret Campbell, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jillian S. Slyfield</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 4437}]
text: 144
  0001898032
  XXXXXXXX
  LIVE
  0000315293
  Aon plc
  001-07933
  15 GEORGES QUAY
  DUBLIN 2
  L2
  D02 VR98
  35312666000
  Slyfield Jillian
  Officer
  Class A
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  260
  100063.16
  216266278
  02/10/2025
  NYSE
  Class A
  02/22/2021
  Restricted Stock Vesting
  Issuer
  N
  34
  02/22/2021
  Compensation
  Class A
  03/13/2021
  Restricted Stock Vesting
  Issuer
  N
  75
  03/13/2021
  Compensation
  Class A
  03/15/2021
  Restricted Stock Vesting
  Issuer
  N
  92
  03/15/2021
  Compensation
  Class A
  05/21/2021
  Restricted Stock Vesting
  Issuer
  N
  59
  05/21/2021
  Compensation
  Y
  02/10/2025
  /s/ Margaret Campbell, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jillian S. Slyfield