USS Haven (AH-12), was the lead ship of her class of hospital ships built for the U.S. Navy during World War II. Laid down as SS Marine Hawk, she was transferred from the Maritime Commission for conversion to a hospital ship, and served in that capacity through the end of the war. She was redesignated APH-112 (evacuation transport) in June 1946 for participation in Operation Crossroads, returning to her original AP-12 designation in October 1946. Haven participated in the Korean War and eventually ending her military career acting as a floating hospital in Long Beach, California. She was later converted to a chemical carrier and scrapped in 1987.