United States

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 17, 2008

UNION BANKSHARES CORPORATION

(Exact name of registrant as specified in its charter)

211 North Main Street

P.O. Box 446

Bowling Green, Virginia 22427

(Address of principal executive offices, including Zip Code)

Registrant’s telephone number, including area code: (804) 633-5031

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

On October 29, 2008, Union Bankshares Corporation (the “Company”) filed a Current Report on Form 8-K ( “Original 8-K”) with the U.S. Securities and Exchange Commission (“the SEC”) to report the Company had filed a Form S-3 shelf registration statement with the SEC.

On November 17, 2008, the Company filed a Form S-3/A to amend its registration statement to file additional information in connection with its offering from up to $50 million of certain of its securities, as reported in the Original 8-K, to up to $60 million of certain of its securities. Once declared effective by the SEC, the Form S-3 shelf registration, as amended, will allow the Company to raise capital from time to time, up to an aggregate of $60 million, through the sale of various types of securities as more fully described in Company’s SEC filings.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

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