Shin'ichirō, Shin'ichiro, Shin'ichirou or Shin'ichiroh (written: 信一郎, 真一郎, 眞一郎, 晋一郎, 伸一郎, 振一郎 or 慎一郎) is a masculine Japanese given name. Notable people with the name include:
, Japanese politician , Japanese composer , Japanese professional shogi player , Japanese baseball player , Japanese anime director , Japanese photographer , Japanese baseball player , Japanese anthropologist, philosopher, writer and politician , Japanese diplomat , Japanese footballer , Japanese voice actor , Japanese writer , Japanese voice actor and announcer , Japanese automotive engineer , Japanese film director and screenwriter , Japanese boxer , Japanese footballer and manager , Japanese footballer , Japanese physicist , Japanese anime director, screenwriter and producer , Japanese DJ and record producer