Mienoumi Tsuyoshi, Japanese sumo wrestler
Mienoumi Tsuyoshi (Japanese: 三重ノ海 剛司, Hepburn: Mienoumi Tsuyoshi, born February 4, 1948 as Gorō Ishiyama (石山五郎, Ishiyama Gorō)) is a Japanese former professional sumo wrestler from Matsusaka, Mie. He was the 57th yokozuna of the sport. After retiring he founded the Musashigawa stable and was a chairman of the Japan Sumo Association. He was the first rikishi in history who was demoted from the rank of Ozeki but still managed the promotion to Yokozuna.