Keiichirō, Keiichiro or Keiichirou (written: 敬一郎, 銈一郎, 圭一郎, 桂一郎, 啓一郎, 恵一郎 or 慶一郎) is a masculine Japanese given name. Notable people with the name include:
Keiichiro Asao (浅尾 慶一郎, born 1964), Japanese politician
Keiichiro Fukabori (深堀 圭一郎, born 1968), Japanese golfer
Keiichirō Gotō (後藤 敬一郎, 1918–2004), Japanese photographer
Keiichiro Hirano (平野 啓一郎, born 1975), Japanese writer
Keiichiro Kobayashi (小林 慶一郎, born 1966), Japanese economist, professor
Keiichiro Koyama (小山 慶一郎, born 1984), Japanese musician
Kume Keiichiro (久米 桂一郎, 1866–1934), Japanese painter
Keiichiro Nagashima (長島 圭一郎, born 1982), Japanese speed skater
Keiichiro Nakano (野 圭一郎, born 1976), Japanese footballer
Keiichiro Toyama (外山 圭一郎), Japanese video game designer
Keiichiro Yamamiya (山宮 恵一郎, born 1972), Japanese mixed martial artist
Keiichirō Yoshino (吉野 銈一郎, 1895–1983), Japanese photographer
