Sadaharu
| Gender | Male |
|---|---|
| Origin | |
| Word/name | Japanese |
| Meaning | Different meanings depending on the kanji used |
Sadaharu (written: 貞治) is a masculine Japanese given name. Notable people with the name include:
- Sadaharu Aoki (青木 定治; born 1968), Japanese Pastry chef with boutique in Paris
- Sadaharu Oh (王貞治; born 1940), Japanese-Taiwanese baseball player and manager
- Sadaharu Tanikawa (谷川 貞治; born 1961), Japanese journalist
- Sadaharu Yagi, Japanese-born record producer, mixing engineer and recording engineer