Futatsuryū Jun'ichi (双津竜 順一, born Jun'ichi Yamamoto; February 28, 1950 – August 12, 2014) was a sumo wrestler from Hokkaidō, Japan. After retirement he became the head coach of Tokitsukaze stable. Following his involvement in the hazing and death of trainee Takashi Saito, in October 2007 he became the first serving stablemaster to be dismissed by the Japan Sumo Association. In May 2009 he was sentenced to six years in prison. He died on August 12, 2014 of lung cancer.