The Japanese aircraft carrier Unryū (雲龍?) was a fleet aircraft carrier of the Imperial Japanese Navy which served during World War II. She was commissioned on 6 August 1944 and eventually torpedoed and sunk by US submarine USS Redfish (SS-395) in the East China Sea on 19 December that same year. The name Unryū means literally "cloud dragon" and bears the allusion "Heavenward Bound Dragon Riding the Clouds".