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>0001207929</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001037646</issuerCik>
        <issuerName>METTLER TOLEDO INTERNATIONAL INC/</issuerName>
        <secFileNumber>001-13595</secFileNumber>
        <issuerAddress>
          <com:street1>1900 POLARIS PARKWAY</com:street1>
          <com:city>COLUMBUS</com:city>
          <com:stateOrCountry>OH</com:stateOrCountry>
          <com:zipCode>43240</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>6144384511</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Filliol Olivier A</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Former director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Merrill</name>
          <address>
            <com:street1>8890 Lyra Dr</com:street1>
            <com:city>Columbus</com:city>
            <com:stateOrCountry>OH</com:stateOrCountry>
            <com:zipCode>43240</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>10000</noOfUnitsSold>
        <aggregateMarketValue>13916702.00</aggregateMarketValue>
        <noOfUnitsOutstanding>22020230</noOfUnitsOutstanding>
        <approxSaleDate>05/19/2023</approxSaleDate>
        <securitiesExchangeName>nyse</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>common</securitiesClassTitle>
        <acquiredDate>11/05/2015</acquiredDate>
        <natureOfAcquisitionTransaction>stock option exercise</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Mettler Toledo</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>10000</amountOfSecuritiesAcquired>
        <paymentDate>05/19/2023</paymentDate>
        <natureOfPayment>cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Olivier Filliol</name>
          <address>
            <com:street1>1900 Polaris Parkway</com:street1>
            <com:city>Columbus</com:city>
            <com:stateOrCountry>OH</com:stateOrCountry>
            <com:zipCode>43240</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>03/01/2023</saleDate>
        <amountOfSecuritiesSold>10000</amountOfSecuritiesSold>
        <grossProceeds>14254288.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Olivier Filliol</name>
          <address>
            <com:street1>1900 Polaris Parkway</com:street1>
            <com:city>Columbus</com:city>
            <com:stateOrCountry>OH</com:stateOrCountry>
            <com:zipCode>43240</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>02/28/2023</saleDate>
        <amountOfSecuritiesSold>10000</amountOfSecuritiesSold>
        <grossProceeds>14336092.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Olivier Filliol</name>
          <address>
            <com:street1>1900 Polaris Parkway</com:street1>
            <com:city>Columbus</com:city>
            <com:stateOrCountry>OH</com:stateOrCountry>
            <com:zipCode>43240</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>02/23/2023</saleDate>
        <amountOfSecuritiesSold>3056</amountOfSecuritiesSold>
        <grossProceeds>4471947.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Olivier Filliol</name>
          <address>
            <com:street1>1900 Polaris Parkway</com:street1>
            <com:city>Columbus</com:city>
            <com:stateOrCountry>OH</com:stateOrCountry>
            <com:zipCode>43240</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>common</securitiesClassTitle>
        <saleDate>02/22/2023</saleDate>
        <amountOfSecuritiesSold>3332</amountOfSecuritiesSold>
        <grossProceeds>4858450.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Olivier Filliol</name>
          <address>
            <com:street1>1900 Polaris Parkway</com:street1>
            <com:city>Columbus</com:city>
            <com:stateOrCountry>OH</com:stateOrCountry>
            <com:zipCode>43240</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>common</securitiesClassTitle>
        <saleDate>02/21/2023</saleDate>
        <amountOfSecuritiesSold>1300</amountOfSecuritiesSold>
        <grossProceeds>1919693.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>05/19/2023</noticeDate>
        <signature>Olivier Filliol</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 5649}]
text: 144
  0001207929
  XXXXXXXX
  LIVE
  0001037646
  METTLER TOLEDO INTERNATIONAL INC/
  001-13595
  1900 POLARIS PARKWAY
  COLUMBUS
  OH
  43240
  6144384511
  Filliol Olivier A
  Former director
  common
  Merrill
  8890 Lyra Dr
  Columbus
  OH
  43240
  10000
  13916702.00
  22020230
  05/19/2023
  nyse
  common
  11/05/2015
  stock option exercise
  Mettler Toledo
  N
  10000
  05/19/2023
  cash
  N
  Olivier Filliol
  1900 Polaris Parkway
  Columbus
  OH
  43240
  Common
  03/01/2023
  10000
  14254288.00
  Olivier Filliol
  1900 Polaris Parkway
  Columbus
  OH
  43240
  Common
  02/28/2023
  10000
  14336092.00
  Olivier Filliol
  1900 Polaris Parkway
  Columbus
  OH
  43240
  Common
  02/23/2023
  3056
  4471947.00
  Olivier Filliol
  1900 Polaris Parkway
  Columbus
  OH
  43240
  common
  02/22/2023
  3332
  4858450.00
  Olivier Filliol
  1900 Polaris Parkway
  Columbus
  OH
  43240
  common
  02/21/2023
  1300
  1919693.00
  05/19/2023
  Olivier Filliol