-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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MIC-Info: RSA-MD5,RSA,
 C6MZHIoMI/FjGep5zkI4i4CRj8XTFmz4fXUtyfaemHjvpovyIkTCWH288/48Rm+k
 We58YnkOwu2JFQNuRznqyA==

<SEC-DOCUMENT>0000854560-03-000023.txt : 20030716
<SEC-HEADER>0000854560-03-000023.hdr.sgml : 20030716
<ACCEPTANCE-DATETIME>20030716142309
ACCESSION NUMBER:		0000854560-03-000023
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030714
FILED AS OF DATE:		20030716

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GREAT SOUTHERN BANCORP INC
		CENTRAL INDEX KEY:			0000854560
		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTIONS, NOT FEDERALLY CHARTERED [6036]
		IRS NUMBER:				431524856
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1451 E BATTLEFIELD
		CITY:			SPRINGFIELD
		STATE:			MO
		ZIP:			65804
		BUSINESS PHONE:		4177764400

	MAIL ADDRESS:	
		STREET 1:		P O BOX 9009
		STREET 2:		P O BOX 9009
		CITY:			SPRINGFIELD
		STATE:			MO
		ZIP:			65808-9009

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MITCHEM STEVEN G
		CENTRAL INDEX KEY:			0001044053
		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTIONS, NOT FEDERALLY CHARTERED [6036]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-18082
		FILM NUMBER:		03788991

	BUSINESS ADDRESS:	
		STREET 1:		1451 E BATTLEFIELD
		CITY:			SPRINGFIELD
		STATE:			MO
		ZIP:			65804
		BUSINESS PHONE:		4178874400

	MAIL ADDRESS:	
		STREET 2:		P O BOX 9009
		CITY:			SPRINGFIELD
		STATE:			MO
		ZIP:			65808-9009
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <documentType>4</documentType>

    <periodOfReport>2003-07-14</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000854560</issuerCik>
        <issuerName>GREAT SOUTHERN BANCORP INC</issuerName>
        <issuerTradingSymbol>GSBC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001044053</rptOwnerCik>
            <rptOwnerName>MITCHEM STEVEN G</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Vice President of Subsidiary</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeSecurity>
        <securityTitle>
            <value>Common Stock</value>
        </securityTitle>
        <transactionDate>
            <value>2003-07-14</value>
        </transactionDate>
        <transactionCoding>
            <transactionFormType>4</transactionFormType>
            <transactionCode>P</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
        </transactionCoding>
        <transactionTimeliness>
            <value></value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>92</value>
            </transactionShares>
            <transactionValue>
                <value>39.45</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>34784</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </nonDerivativeSecurity>


    <ownerSignature>
        <signatureName>Matt Snyder, Attorney-in-fact for Steven G. Mitchem</signatureName>
        <signatureDate>2003-07-16</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----