Enoura Maru was a Japanese passenger cargo ship used by the Imperial Japanese Navy during World War II as a troop transport and prisoner of war (POW) transport ship. Japanese POW transport ships are often referred to as hell ships, due to their notoriously unpleasant conditions and the many deaths that occurred on board. On 9 January 1945, while docked at Takao and loaded with Allied prisoners of war including many from the sunken Ōryoku Maru, it was attacked by Allied aircraft resulting in the deaths of approximately 400 Allied POWs.