Ishinriki Kōji (born 24 January 1961 as Kōji Iibashi) is a former sumo wrestler from Suginami, Tokyo, Japan. His highest rank was jūryō 1. He was one of the smallest sekitori ever at 175 cm (5 ft 9 in) and 85 kg (187 lb). After his retirement in 1990 he became a professional wrestler for a number of organizations including Super World of Sports, WAR, Pro Wrestling Crusaders and IWA Japan.