| Office: | Head of Mōri clan |
| Term Start: | 1623 |
| Term End: | 1651 |
| Predecessor: | Mōri Terumoto |
| Successor: | Mōri Tsunahiro |
| Mōri Hidenari | |
| Native Name: | 毛利秀就 |
| Native Name Lang: | jpn 毛利秀就 |
| Birth Date: | November 19, 1595 |
| Death Date: | February 24, 1651 (aged 55) |
| Nickname: | Shōjumaru (松寿丸) |
| Allegiance: | Mōri clan Tokugawa Shogunate |
| Relations: | Father: Mōri Terumoto Mother: Seitai-in (清泰院) Tokugawa Hidetada (father in law) |
| Rank: | Daimyō (Lord) |
| Commands: | Chōshū Domain |
| Unit: | Mōri clan |
| Battles: | Siege of Osaka (1614-1615) |
was a Japanese daimyō of the early Edo period, who ruled the Chōshū Domain. He was head of Mori clan and son of Mori Terumoto.