RitsuoRitsuo (written: 律夫 or 律雄) is a masculine Japanese given name. Notable people with the name include: Ritsuo Horimoto (堀本 律雄, 1935–2012), Japanese baseball
Ritsuo HorimotoRitsuo Horimoto (堀本律雄, Horimoto Ritsuo, January 20, 1935 – January 14, 2012) was a Japanese baseball pitcher. He played for the Yomiuri Giants from 1960