Form 485BPOS GAMCO INTERNATIONAL GROW

As filed with the Securities and Exchange Commission on May 20, 2019

Securities Act File No. 33-79994

Investment Company Act File No. 811-08560

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM N-1A

GAMCO INTERNATIONAL GROWTH FUND, INC.

(Exact Name of Registrant as Specified in Charter)

One Corporate Center, Rye, New York 10580-1422

(Address of Principal Executive Offices)

Registrant’s Telephone Number, including Area Code: 1-800-422-3554

Bruce N. Alpert

Gabelli Funds, LLC

One Corporate Center

Rye, New York 10580-1422

(Name and Address of Agent for Service)

Copies to:

It is proposed that this filing will become effective:

                 X         immediately upon filing pursuant to paragraph (b); or

                             on _________ pursuant to paragraph (b); or

                             60 days after filing pursuant to paragraph (a)(1); or

                             on _________ pursuant to paragraph (a)(1); or

                             75 days after filing pursuant to paragraph (a)(2); or

                             on [____] pursuant to paragraph (a)(2) 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.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant, GAMCO INTERNATIONAL GROWTH FUND, INC., certifies that it meets all of the requirements for effectiveness of this Post-Effective Amendment No. 39 to its Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933, as amended, and has duly caused this Post-Effective Amendment No. 39 to its Registration Statement to be signed on its behalf by the undersigned, thereto duly authorized, in the City of Rye and State of New York, on the 20^th day of May, 2019.

Pursuant to the requirements of the Securities Act of 1933, as amended, this Post-Effective Amendment No. 39 to its Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

            Exhibit Index