As filed with the Securities and Exchange Commission on August 17, 2011

File No. 333-175658

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-14

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

x Pre-Effective Amendment No. 1      

¨ Post-Effective Amendment No.       

NUVEEN INVESTMENT FUNDS, INC.

(Exact Name of Registrant as Specified in Charter)

333 West Wacker Drive

Chicago, Illinois 60606

(Address of Principal Executive Offices, Zip Code)

Registrant’s Telephone Number, including Area Code (312) 917-7700

Kevin J. McCarthy

Vice President and Secretary

333 West Wacker Drive

Chicago, Illinois 60606

(Name and Address of Agent for Service)

Copy to:

Deborah Bielicke Eades Vedder Price P.C. 222 North LaSalle Street Chicago, Illinois 60601 Eric F. Fess Chapman and Cutler LLP 111 West Monroe Street Chicago, Illinois 60603

Approximate date of proposed public offering: As soon as practicable after the effective date of this Registration Statement.

TITLE OF SECURITIES BEING REGISTERED: Shares of Common Stock (par value $0.0001 per share) of the Registrant.

No filing fee is required because of reliance on Section 24(f) and an indefinite number of shares have previously been registered pursuant to Rule 24f-2 under the Investment Company Act of 1940.

The Registrant hereby amends this Registration Statement on such date or dates as may be necessary to delay its effective date until the Registrant shall file a further amendment that specifically states that this Registration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until the Registration Statement shall become effective on such date as the Commission, acting pursuant to said Section 8(a), may determine.

EXPLANATORY NOTE

This Pre-Effective Amendment No. 1 to the Registration Statement on Form N-14 is being filed for the sole purpose of delaying the effectiveness of the Registrant’s previously filed initial Registration Statement filed on Form N-14 (File No. 333-175658) on July 19, 2011. This Pre-Effective Amendment incorporates by reference the information contained in Parts A, B and C of the initial Registration Statement on Form N-14 (File No. 333-175658) under the Securities Act of 1933, as filed with the Commission on July 19, 2011.

SIGNATURES

As required by the Securities Act of 1933, this registration statement has been signed on behalf of the registrant, in the City of Chicago, the State of Illinois, on the 17th day of August, 2011.

NUVEEN INVESTMENT FUNDS, INC.
BY:	/s/ Kathleen L. Prudhomme_
	Kathleen L. Prudhomme
	Vice President and Assistant Secretary

As required by the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated:

Signature	Capacity		Date
/s/    Stephen D. Foy           Stephen D. Foy	Vice President and Controller (principal financial and accounting)		August 17, 2011
/s/ Gifford R. Zimmerman   Gifford R. Zimmerman	Chief Administrative Officer (principal executive officer)		August 17, 2011
Robert P. Bremner*	Chairman of the Board and Director	) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) )
John P. Amboian*	Director
Jack B. Evans*	Director
William C. Hunter*	Director		By: /s/    Kathleen L. Prudhomme                 Kathleen L. Prudhomme                     Attorney-in-Fact                     August 17, 2011
	Director
David J. Kundert*
William J. Schneider*	Director
Judith M. Stockdale*	Director
Carole E. Stone*	Director

Signature	Capacity		Date
Virginia L. Stringer*	Director	) ) ) ) )
Terence J. Toth*	Director

* An original power of attorney authorizing, among others, Kevin J. McCarthy, Kathleen L. Prudhomme and Gifford R. Zimmerman, to execute this registration statement, and amendments thereto, for each of the directors of the Registrant on whose behalf this registration statement is filed, has been executed, filed as exhibit 16 to Registrant’s registration statement on Form N-14 on July 19, 2011, and is incorporated by reference herein.