content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <!-- Generated by Workiva -->
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001752101</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000074303</issuerCik>
        <issuerName>Olin Corporation</issuerName>
        <secFileNumber>001-01070</secFileNumber>
        <issuerAddress>
          <com:street1>190 Carondelet Plaza</com:street1>
          <com:street2>Suite 1530</com:street2>
          <com:city>Clayton</com:city>
          <com:stateOrCountry>MO</com:stateOrCountry>
          <com:zipCode>63105</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>3144801466</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Valerie A Peters</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Voya Financial Corporation</name>
          <address>
            <com:street1>1700 S Price Road</com:street1>
            <com:city>Chandler</com:city>
            <com:stateOrCountry>AZ</com:stateOrCountry>
            <com:zipCode>85286</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>4124</noOfUnitsSold>
        <aggregateMarketValue>238614.64</aggregateMarketValue>
        <noOfUnitsOutstanding>125826323</noOfUnitsOutstanding>
        <approxSaleDate>08/03/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>02/01/2006</acquiredDate>
        <natureOfAcquisitionTransaction>Aquired with Olin CEOP</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Olin Corporation</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>4124</amountOfSecuritiesAcquired>
        <paymentDate>08/03/2023</paymentDate>
        <natureOfPayment>Moving funds from Olin Contributing Employee Ownership Plan (CEOP) from the Olin Common Stock Fund to a target date fund within the Olin CEOP</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Valerie Peters</name>
          <address>
            <com:street1>190 Carondelet Plaza</com:street1>
            <com:street2>Suite 1530</com:street2>
            <com:city>Clayton</com:city>
            <com:stateOrCountry>MO</com:stateOrCountry>
            <com:zipCode>63105</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <saleDate>05/10/2023</saleDate>
        <amountOfSecuritiesSold>46</amountOfSecuritiesSold>
        <grossProceeds>2476.67</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>08/03/2023</noticeDate>
        <signature>/s/ Valerie A. Peters</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3574}]
text: 144
  0001752101
  XXXXXXXX
  LIVE
  0000074303
  Olin Corporation
  001-01070
  190 Carondelet Plaza
  Suite 1530
  Clayton
  MO
  63105
  3144801466
  Valerie A Peters
  Officer
  Common Stock
  Voya Financial Corporation
  1700 S Price Road
  Chandler
  AZ
  85286
  4124
  238614.64
  125826323
  08/03/2023
  NYSE
  Common Stock
  02/01/2006
  Aquired with Olin CEOP
  Olin Corporation
  N
  4124
  08/03/2023
  Moving funds from Olin Contributing Employee Ownership Plan (CEOP) from the Olin Common Stock Fund to a target date fund within the Olin CEOP
  N
  Valerie Peters
  190 Carondelet Plaza
  Suite 1530
  Clayton
  MO
  63105
  Common Stock
  05/10/2023
  46
  2476.67
  08/03/2023
  /s/ Valerie A. Peters