Kōshirō, Koshiro or Koushirou (written: 幸四郎, 孝四郎, 高志郎, 庚子郎, 好志郎 or 公志郎) is a masculine Japanese given name. Notable people with the name include: Koshiro Itohara (糸原 紘史郎; born 1998), Japanese footballer Kōshirō Ishida (石田 幸四郎; 1930–2006), Japanese politician Matsumoto Kōshirō (松本 幸四郎), various kabuki actors Matsumoto Kōshirō X (十代目 松本幸四郎), Japanese actor and kabuki actor Matsumoto Kōshirō VII (七代目 松本 幸四郎), Japanese actor Kōshirō Onchi (恩地 孝四郎; 1891–1955), Japanese print maker and photographer K