| Office: | Head of Mōri clan |
| Term End: | 1476 |
| Successor: | Mōri Hiromoto |
| Mōri Toyomoto | |
| Native Name: | 毛利 豊元 |
| Birth Date: | 1444 |
| Death Date: | 1476 |
| Birth Place: | Aki Province |
| Children: | Mōri Hiromoto |
| Allegiance: | Ōuchi clan |
| Rank: | Jizamurai |
| Unit: | Mōri clan |
| Battles: | Ōnin War |
Mōri Toyomoto (毛利 豊元, 1444–1476) was a Jizamurai of the province of Aki, and father of Mōri Hiromoto. He is known as the grandfather of the Mōri Motonari.
In 1461–1462, Toyomoto defeated Hatakeyama Yoshinari's army in Kawachi and Kii.
During the year of 1465, Toyomoto then sent troops to assist Kobayakawa Hirohira when Ōuchi Masahiro invaded his holdings. During the fall of the same year, Ōuchi made an interventional against the current war between the Hosokawa and Kōno clans . At the request of the Ōuchi, Toyomoto then blocked the attack led by Masahiro.
Following the year of 1471, Toyotomo took advantage of the confusion generated by the Ōnin War to then establish himself under Ōuchi Masahiro, and pledging his allegiance to the Ōuchi clan.