Kotoryū Hiroo (born 2 March 1972 as Katsumi Nakano) is a former sumo wrestler from Hyōgo, Japan. He joined professional sumo in 1987, reaching the top...

and politician Hiroo Kanamori (金森 博雄, born 1936), Japanese seismologist Hiroo Kawai (河井 博大, born 1971), Japanese golfer Kotoryū Hiroo (琴龍 宏央, born 1972)...