Chiyoda was Chitose's sister, built as a seaplane carrier and later given a flight deck. Kure Naval Arsenal launched her on 19 November 1937 and she was commissioned on 15 December 1938.
She was with Ozawa off Cape Engaño on 25 October 1944. Carrier aircraft stopped her and left her dead in the water. Rear Admiral Laurance T. DuBose came up with Wichita, New Orleans, Santa Fe, and Mobile and finished her with gunfire. The sinking is not credited to one ship.
Chitose, Zuiho, and Zuikaku were sunk the same day by the carrier aircraft. Ozawa had already shifted his flag from Zuikaku to Oyodo.
