| Gender | Male |
|---|---|
| Meaning | Different meanings depending on the kanji used |
| Origin | Japanese |
Mantarō, Mantaro or Mantarou (written: 萬太郎 or 万太郎) is a masculine Japanese given name. Notable people with the name include:
- Hashimoto Mantaro (橋本 萬太郎) (1932–1987), Japanese linguist and sinologist
- Mantarō Kubota (久保田 万太郎) (1889–1963), Japanese writer, playwright and poet
Fictional characters:
- Mantaro Kinniku (キン肉 万太郎), protagonist of the manga series Kinnikuman Nisei
- the Big Man in Shiver, Frye and Big Man