Mōri Suemitsu (毛利 季光, 1202 – July 8, 1247) was a samurai during the Kamakura period and a gokenin of the Kamakura shogunate.

He served three generations of the army of Minamoto no Sanetomo at Tsurugaoka Hachimangū.

He was defeated by Hōjō Tokiyori in 1247 and committed suicide (seppuku) at Minamoto no Yoritomo's shrine (hokkedō) along with his Miura allies.

His grave (yagura) is in Kamakura, only a few hundred yards from the grave of Minamoto no Yoritomo along with his father and Shimazu Tadahisa, who founded the Shimazu clan.

The Miura clan's family tomb is also nearby.