Ōyodo (大淀 ?), was a light cruiser of the Imperial Japanese Navy, completed during World War II, and was the only ship of her class completed before the end of the war. As was the practice with IJN light cruisers, she was named after a river, in this case the Ōyodo River in Kyūshū, Japan. Intended as a command vessel for submarine operations, she was used for a variety of missions, and became the flagship of the Combined Fleet before being sunk by American aircraft at Kure, Hiroshima in July 1945.