Kōshirō, Koshiro or Koushirou (written: , , , , or ) is a masculine Japanese given name. Notable people with the name include:
, Japanese footballer , Japanese politician , various kabuki actors , Japanese actor and kabuki actor , Japanese actor , Japanese print maker and photographer , Japanese baseball player , Japanese figure skater , Japanese Paralympic swimmer , Japanese footballer , Japanese horse trainer and retired jockey , Japanese politician , Japanese baseball player , Japanese president of the company Ancient
Fictional characters: (Izzy Izumi in English dub), a fictional character from Digimon Adventure. , a fictional character from Machine Robo Rescue. , a fictional character from The Kouga Ninja Scrolls , a fictional character from One Piece Koshirō or Koshirou (written: ) is a separate given name, though it may be romanized the same way:
(1883–1958), Imperial Japanese Navy admiral