USS Ammonusuc (AOG-23) was a Mettawee-class gasoline tanker acquired by the U.S. Navy for the dangerous task of transporting gasoline to warships in the fleet, and to remote Navy stations. Ammonusuc was laid down under a Maritime Commission contract (MC hull 1520) on 23 November 1943 at Bayonne, New Jersey, by the East Coast Shipyard, Inc.; launched on 25 March 1944; sponsored by Miss Helen T. Clark; acquired by the Navy on a loan charter basis on 18 May 1944; and commissioned on 19 May 1944, Lt. (jg.) Lester F. Baker, USCG, in command.