The Ōta clan (太田氏,, Ōta-shi) was samurai kin group which rose to prominence in Sengoku and Edo period Japan.

[1] A 5th generation descendant of Hirotsune, Minamoto no Sukekuni, established himself in Kuwada District of Tanba Province (present day Kameoka, Kyoto) and adopted the name of the Ōta shōen as his own.

[1] During the early Muromachi period, Ōta Sukekiyo, served the Ogigayatsu-branch of the Uesugi clan and was appointed Shugodai of Sagami Province.

[1] Then, in the period spanning the years 1746 through 1868, this branch of the Ōta clan established itself at Kakegawa Domain (53,000 koku)[3] in Tōtōmi.

[2] The final head of the clan, Ōta Sukeyoshi received the kazoku peerage title of shishaku ("viscount") in the Meiji period.