Taizō, Taizo or Taizou (written: 泰三, 泰造, 大造 or 太蔵) is a masculine Japanese given name. Notable people with the name include:
Taizo Ichinose (一ノ瀬 泰造, 1947–1973), Japanese war photographerTaizō Ishizaka (石坂 泰三, 1886–1975), Japanese businessmanTaizo Kawamoto (川本 泰三, 1914–1985), Japanese footballer and managerTaizô Kawashima, Japanese production designer and art directorTaizō Mikazuki (三日月 大造, born 1971), Japanese politicianTaizo Nishimuro (西室 泰三, born 1935), Japanese businessmanTaizo Sugitani (杉谷 泰造, born 1976), Japanese equestrianTaizō Sugimura (杉村 太蔵, born 1979), Japanese politician