Tags: Sumo Wrestler, Wrestler.
Oiteyama Hirokuni (born 16 June 1938 as Mitsugu Yamaguchi) is a former sumo wrestler from Goshogawara Aomori Japan. He made his professional debut in May 1953 and reached the top division in May 1960. His highest rank was maegashira 6. Upon retirement from active competition he became an elder in the Japan Sumo Association. He reached the Sumo Association’s mandatory retirement age of 65 in June 2003.