<SEC-DOCUMENT>0001567619-20-001505.txt : 20200124
<SEC-HEADER>0001567619-20-001505.hdr.sgml : 20200124
<ACCEPTANCE-DATETIME>20200124152435
ACCESSION NUMBER:		0001567619-20-001505
CONFORMED SUBMISSION TYPE:	3/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200116
FILED AS OF DATE:		20200124
DATE AS OF CHANGE:		20200124

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Prachar Michael A.
		CENTRAL INDEX KEY:			0001801099

	FILING VALUES:
		FORM TYPE:		3/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-13375
		FILM NUMBER:		20545191

	MAIL ADDRESS:	
		STREET 1:		10000 ALLIANCE ROAD
		CITY:			CINCINNATI
		STATE:			OH
		ZIP:			45242

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LSI INDUSTRIES INC
		CENTRAL INDEX KEY:			0000763532
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC LIGHTING & WIRING EQUIPMENT [3640]
		IRS NUMBER:				310888951
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		10000 ALLIANCE RD
		STREET 2:		P O BOX 42728
		CITY:			CINCINNATI
		STATE:			OH
		ZIP:			45242
		BUSINESS PHONE:		5135796411

	MAIL ADDRESS:	
		STREET 1:		10000 ALLIANCE RD
		STREET 2:		P O BOX 42728
		CITY:			CINCINNATI
		STATE:			OH
		ZIP:			45242

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LSI LIGHTING SYSTEMS INC
		DATE OF NAME CHANGE:	19891121
</SEC-HEADER>
<DOCUMENT>
<TYPE>3/A
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 3/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2020-01-16</periodOfReport>

    <dateOfOriginalSubmission>2020-01-24</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000763532</issuerCik>
        <issuerName>LSI INDUSTRIES INC</issuerName>
        <issuerTradingSymbol>LYTS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001801099</rptOwnerCik>
            <rptOwnerName>Prachar Michael A.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O LSI INDUSTRIES INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1000 ALLIANCE ROAD</rptOwnerStreet2>
            <rptOwnerCity>CINCINNATI</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>45242</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Marketing Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>32083</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By IRA</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">This amendment is being filed to reflect the number of shares held indirectly, which was omitted due to an administrative error.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ F. Mark Reuter as Attorney-in-Fact for Michael A. Prachar</signatureName>
        <signatureDate>2020-01-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
