HMS Unicorn was a UK maintenance aircraft carrier and occasional light fleet carrier that saw war service in World War II from 1943 until the Japanese surrender and again during the Korean War. She was the only ship of her class, her design influenced by the Ark Royal class. She was used in war service in the Atlantic and Mediterranean in 1943, East Indies in 1944-1945, Pacific in 1945, and Korea 1950 to 1953.