USS Cape May County (LST-521) was an LST-491-class tank landing ship built for the United States Navy during World War II. Named for Cape May County, New Jersey, she was the only U.S. Naval vessel to bear the name. LST-521 was laid down on 4 October 1943 at Seneca, Illinois by the Chicago Bridge & Iron Company; launched on 13 December 1943; sponsored by Mrs. Ruth Sexton; and commissioned on 9 February 1944 with Lieutenant J. J. Kilthau in command. LST-521 earned one battle star for World War II service.