USS Marcus Island (CVE-77) was an Casablanca class escort carrier of the United States Navy. She was laid down as Kanalku Bay under Maritime Commission contract by Kaiser Co., Inc., Vancouver, Washington on 15 September 1943; renamed Marcus Island on 6 November 1943; launched on 16 December 1943; sponsored by Mrs. S. L. La Hache; acquired by the Navy on 26 January 1944; and commissioned at Astoria, Oregon on 26 January 1944, Captain Charles F. Greber in command.