Shinjirō, Shinjiro or Shinjirou is a masculine Japanese given name. Notable people with the name include:Shinjiro Atae , Japanese singer and actor Shinjirō Ehara , Japanese actor Shinjiro Hiyama , Japanese baseball player Shinjiro Kazama , Japanese linguist Shinjirō Koizumi , Japanese politician Shinjiro Ono , Japanese government official and diplomat Shinjiro Otani , Japanese professional wrestler
