The USS Cebu (ARG-6) was a Luzon-class internal combustion engine repair ship in the service of the United States Navy in World War II. Named after Cebu, an island in the Philippines, it was the second ship of the Navy to bear this name. Cebu was laid down 21 September 1943 as Liberty ship SS Francis P. Duffy (MCE hull 1805) by Bethlehem Fairfield Shipyard, Baltimore, Maryland, under a Maritime Commission contract; launched 18 October 1943; sponsored by Mrs. M. C. Bird; acquired by the Navy 27 October 1943 and commissioned 15 April 1944, Captain G. W. Scott in command.