CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT

Pursuant to 18 U.S.C. 1350, each of the undersigned, being the Principal
Executive Officer and Principal Financial Officer of AllianceBernstein
International Research Growth Fund, Inc. (the "Registrant"), hereby certifies
that the Registrant's report on Form N-CSR for the period ended July 31, 2005
(the "Report") fully complies with the requirements of Section 13(a) or 15(d)
of the Securities Exchange Act of 1934 and that the information contained in
the Report fairly presents, in all material respects, the financial condition
and results of operations of the Registrant.

Date: September 28, 2005
                                  By: /s/ Marc O. Mayer
                                      -----------------
                                      Marc O. Mayer
                                      President


                                  By: /s/ Mark D. Gersten
                                      -------------------
                                      Mark D. Gersten
                                      Treasurer and Chief Financial Officer


This certification is being furnished solely pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002 and is not being filed as part of the Report or as a
separate disclosure document.

A signed original of this written statement required by Section 906 has been
provided to the Registrant and will be retained by the Registrant and furnished
to the Securities and Exchange Commission or its staff upon request.