<SEC-DOCUMENT>0001179110-20-004144.txt : 20200326
<SEC-HEADER>0001179110-20-004144.hdr.sgml : 20200326
<ACCEPTANCE-DATETIME>20200326183637
ACCESSION NUMBER:		0001179110-20-004144
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200313
FILED AS OF DATE:		20200326
DATE AS OF CHANGE:		20200326

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Palisi Chapin Sarah
		CENTRAL INDEX KEY:			0001412216

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09973
		FILM NUMBER:		20747410

	MAIL ADDRESS:	
		STREET 1:		3900 LAKEBREEZE AVENUE NORTH
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55429

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MIDDLEBY CORP
		CENTRAL INDEX KEY:			0000769520
		STANDARD INDUSTRIAL CLASSIFICATION:	REFRIGERATION & SERVICE INDUSTRY MACHINERY [3580]
		IRS NUMBER:				363352497
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1228

	BUSINESS ADDRESS:	
		STREET 1:		1400 TOASTMASTER DRIVE
		CITY:			ELGIN
		STATE:			IL
		ZIP:			60120
		BUSINESS PHONE:		8477413300

	MAIL ADDRESS:	
		STREET 1:		1400 TOASTMASTER DRIVE
		CITY:			ELGIN
		STATE:			IL
		ZIP:			60120
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-03-13</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000769520</issuerCik>
        <issuerName>MIDDLEBY CORP</issuerName>
        <issuerTradingSymbol>MIDD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001412216</rptOwnerCik>
            <rptOwnerName>Palisi Chapin Sarah</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE MIDDLEBY CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>1400 TOASTMASTER DRIVE</rptOwnerStreet2>
            <rptOwnerCity>ELGIN</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60120</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-03-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>75.18</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6961</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The purchase price reported is the weighted average purchase price for the number of shares purchased. Full information regarding the number of shares purchased at each separate price will be supplied upon request by the Securities &amp; Exchange Commission staff, the Issuer or a security holder of the Issuer.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Michael D. Thompson POA</signatureName>
        <signatureDate>2020-03-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
