As filed with the Securities and Exchange Commission on April 22, 2011

File Nos. 33-18647

811-5398

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933
Pre-Effective Amendment No.
Post-Effective Amendment No. 54	x

and/or

REGISTRATION STATEMENT

UNDER

THE INVESTMENT COMPANY ACT OF 1940

Amendment No. 55 x

ALLIANCEBERNSTEIN VARIABLE PRODUCTS SERIES FUND, INC.

(Exact Name of Registrant as Specified in Charter)

1345 Avenue of the Americas, New York, New York 10105

(Address of Principal Executive Office) (Zip Code)

Registrant’s Telephone Number, including Area Code:

(800) 221-5672

EMILIE D. WRAPP

AllianceBernstein L.P.

1345 Avenue of the Americas

New York, New York l0105

(Name and address of agent for service)

Copies of communications to:

Kathleen K. Clarke

Seward & Kissel LLP

1200 G Street, NW

Suite 350

Washington, DC 20005

It is proposed that this filing will become effective (check appropriate box)

¨ Immediately upon filing pursuant to paragraph (b)

x On April 25, 2011 pursuant to paragraph (b)

¨ 60 days after filing pursuant to paragraph (a)(1)

¨ On (date) pursuant to paragraph (a)(1)

¨ 75 days after filing pursuant to paragraph (a)(2)

¨ On (date) pursuant to paragraph (a) of Rule 485

If appropriate, check the following box:

¨ This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

This Post-Effective Amendment No. 54 relates solely to the Class A and Class B shares of the AllianceBernstein Dynamic Asset Allocation Portfolio of the Registrant. No information in the Registrant’s registration statement relating to the Class A and Class B shares of the AllianceBernstein Money Market Portfolio, AllianceBernstein Large Cap Growth Portfolio, AllianceBernstein Growth and Income Portfolio, AllianceBernstein Global Thematic Growth Portfolio, AllianceBernstein Growth Portfolio, AllianceBernstein International Growth Portfolio, AllianceBernstein Intermediate Bond Portfolio, AllianceBernstein Small Cap Growth Portfolio, AllianceBernstein Real Estate Investment Portfolio, AllianceBernstein International Value Portfolio, AllianceBernstein Small/Mid Cap Value Portfolio, AllianceBernstein Value Portfolio and AllianceBernstein Balanced Wealth Strategy Portfolio is amended or superseded hereby.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this Amendment to its Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused this Amendment to the Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of New York and State of New York, on the 22^nd day of April, 2011.

ALLIANCEBERNSTEIN VARIABLE PRODUCTS SERIES FUND, INC.

By:	Robert M. Keith*
	Robert M. Keith
	President

Pursuant to the requirements of the Securities Act of 1933, as amended, this Amendment to the Registration Statement has been signed below by the following persons in the capacities and on the date indicated:

	SIGNATURE		TITLE	DATE
1.	Principal Executive Officer
		Robert M. Keith*	President and Chief Executive Officer	April 22, 2011
		Robert M. Keith
2.	Principal Financial and Accounting Officer
	/s/ Joseph J. Mantineo		Treasurer and Chief Financial Officer	April 22, 2011
	Joseph J. Mantineo

3.	All of the Directors:
	John H. Dobkin*
	Michael Downey*
	William H. Foulk, Jr.*
	D. James Guzy*
	Nancy P. Jacklin*
	Robert M. Keith*
	Garry L. Moody*
	Marshall C. Turner, Jr.*
	Earl D. Weiner*
	*By:	/s/ Stephen J. Laffey	April 22, 2011
		Stephen J. Laffey
		(Attorney-in-fact)

INDEX TO EXHIBITS

Exhibit No.	Description of Exhibits
EX-101.INS	XBRL Instance Document
EX-101.SCH	XBRL Taxonomy Extension Schema Document
EX-101.CALC	XBRL Taxonomy Extension Calculation Linkbase
EX-101.DEF	XBRL Taxonomy Extension Definition Linkbase
EX-101.LAB	XBRL Taxonomy Extension Labels Linkbase
EX-101.PRE	XBRL Taxonomy Extension Presentation Linkbase