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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 k65PDk0TDAzhl1jlG1jGzg==

<SEC-DOCUMENT>0000079282-11-000005.txt : 20110104
<SEC-HEADER>0000079282-11-000005.hdr.sgml : 20110104
<ACCEPTANCE-DATETIME>20110104123144
ACCESSION NUMBER:		0000079282-11-000005
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20101231
FILED AS OF DATE:		20110104
DATE AS OF CHANGE:		20110104

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GRAMMIG LAUREL L
		CENTRAL INDEX KEY:			0001134919

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13619
		FILM NUMBER:		11504253

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BROWN & BROWN INC
		CENTRAL INDEX KEY:			0000079282
		STANDARD INDUSTRIAL CLASSIFICATION:	INSURANCE AGENTS BROKERS & SERVICES [6411]
		IRS NUMBER:				590864469
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		PO BOX 1348
		CITY:			TAMPA
		STATE:			FL
		ZIP:			33601
		BUSINESS PHONE:		8132224182

	MAIL ADDRESS:	
		STREET 1:		PO BOX 1348
		CITY:			TAMPA
		STATE:			FL
		ZIP:			33601

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	POE & BROWN INC
		DATE OF NAME CHANGE:	19930827

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	POE & ASSOCIATES INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000079282</issuerCik>
        <issuerName>BROWN &amp; BROWN INC</issuerName>
        <issuerTradingSymbol>BRO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001134919</rptOwnerCik>
            <rptOwnerName>GRAMMIG LAUREL L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3101 W MLK JR BLVD STE 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TAMPA</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>32114</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, Sec and Chief Corp Counsel</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $.10 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2010-12-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6348</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>24.12</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>77149</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, $.10 par value</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>61662</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, $.10 par value</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>41658</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>401(k) Plan</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares were withheld by the Company solely to cover the income tax withholding requirements associated with the vesting of 24,000 shares of restricted stock under the Company's Performance Stock Plan (&quot;PSP&quot;).</footnote>
        <footnote id="F2">These securities were granted pursuant to the PSP.  Based on the satisfaction of conditions established pursuant to the PSP, the Reporting Person has voting rights and dividend entitlement with respect to a portion of these shares based on the satisfaction of certain performance-based criteria, but full ownership will not vest until the satisfaction of additional conditions.</footnote>
        <footnote id="F3">A total of 1,193 of these shares were acquired through the Company's Employee Stock Purchase Plan in August 2010.  Number of shares may reflect reinvested dividends.</footnote>
        <footnote id="F4">Based upon information supplied by the Plan's recordkeeper.  Number of shares varies periodically based on contributions to plan.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>LAUREL L. GRAMMIG</signatureName>
        <signatureDate>2011-01-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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