    <SEC-DOCUMENT>0001437749-21-007957-index.html : 20210401
    <SEC-HEADER>0001437749-21-007957.hdr.sgml : 20210401
    <ACCEPTANCE-DATETIME>20210401095036
    ACCESSION NUMBER:		0001437749-21-007957
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20210401
    DATE AS OF CHANGE:		20210401

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			FIRST NATIONAL CORP /VA/
    		CENTRAL INDEX KEY:			0000719402
    		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
    		IRS NUMBER:				541232965
    		STATE OF INCORPORATION:			VA
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-38874
    		FILM NUMBER:		21796362

    	BUSINESS ADDRESS:
    		STREET 1:		112 WEST KING STREET
    		CITY:			STRASBURG
    		STATE:			VA
    		ZIP:			22657
    		BUSINESS PHONE:		5404659121

    	MAIL ADDRESS:
    		STREET 1:		112 WEST KING STREET
    		CITY:			STRASBURG
    		STATE:			VA
    		ZIP:			22657
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>fxnc20210330_defa14a.htm
    <DESCRIPTION>FORM DEFA14A
    <TEXT>
    Document 1 - file: fxnc20210330_defa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>f01.jpg
    <TEXT>
    Document 2 - file: f01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>f02.jpg
    <TEXT>
    Document 3 - file: f02.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>