The second USS Tangier (AV-8) was a cargo ship, converted to a seaplane tender in the United States Navy during World War II. Tangier was laid down under a Maritime Commission contract (MC hull 51) as Sea Arrow on 18 March 1939 at Oakland, California by Moore Dry Dock Company; launched on 15 September 1939; sponsored by Mrs. Joseph R. Sheehan; renamed Tangier (AV-8) on 3 June 1940; acquired by the Navy on 8 July 1940; and commissioned in ordinary on that same day, Commander Clifton A. F. Sprague in command.