The Satomi clan (里見氏, -shi) was a clan of samurai which claimed descent from Nitta Yoshishige (d. 1202), whose son Yoshitoshi took 'Satomi' as his surname. The Satomi moved from Kōzuke province to Awa province in the mid-15th century, and remained there into the Edo Period. During the Sengoku period, the Satomi were forced to submit to the overlordship of Hōjō Ujitsuna in 1539. The remainder of the period saw the clan battle the Hōjō, Takeda, and Imagawa clans on a number of occasions.
The clan's holdings amounted to 120,000 koku at the beginning of the Edo period, but the clan died out in 1622.