Misugisato Kōji (born 1 July 1962 as Kōji Okamoto) is a former sumo wrestler from Shiga Prefecture, Japan. He made his professional debut in 1979, and his highest rank was komusubi which he reached in 1989. He earned six gold stars for defeating yokozuna and one special prize for Fighting Spirit. He retired in 1998 and became an elder of the Japan Sumo Association before leaving the sumo world in 2006.