Tadao (written: 忠雄, 忠夫, 忠男, 忠生, 忠郎 or 理男) is a masculine Japanese given name. Notable people with the name include: *, Japanese architect *, Japanese ''daimyō'' *, Japanese motorcycle engineer *, Japanese banker *, Japanese photographer *, Japanese footballer and manager *, Japanese screenwriter and film director *, Japanese information theorist *, Japanese inventor and engineer *, Japanese shogi player *, Japanese footballer and manager *, Japanese photographer *, Japanese anime director * Tadao Nakamura (born 1947), Japanese golfer *, Japanese mathematician *, Japanese footballer *, Japanese film critic and theorist *, Japanese musician *, Japanese astronomer and translator *, Japanese footballer *, Japanese mathematician *, Japanese photographer * Tadao Tomomatsu, American actor *, Japanese diver *, Japanese long-distance runner *, Japanese gymnast *, Japanese anthropologist *, Japanese politician *, Japanese economist and academic *, Japanese sumo and professional wrestler

Fictional characters

*, a character in the manga series '' Lucky Star'' *, a character in the manga series '' Ghost Sweeper Mikami'' {{given name Japanese masculine given names Masculine given names