Wakashimazu Mutsuo, a Japanese sumo wrestler, died on March 15, 2026.
Born Mutsuo Hidaka on January 12, 1957, in Nakatane, Kagoshima, he reached the rank of ōzeki and won two top-division yūshō championships. He joined Futagoyama stable in March 1975 after completing high school, retired in 1987, and founded Matsugane stable in 1990, now known as Hanaregoma stable.
Wakashimazu Mutsuo (若嶋津 六夫) (born Mutsuo Hidaka; 12 January 1957 – 15 March 2026) was a Japanese sumo wrestler from Nakatane, Kagoshima. His highest rank was ōzeki. He won two top-division yūshō or tournament championships. Mutsuo retired in 1987 and founded Matsugane stable in 1990 (now known as Hanaregoma stable).