Ōta Suketoshi (太田 資俊, 1720 – January 12, 1764) was a daimyō during mid-Edo period Japan and fifth hereditary chieftain of the Kakegawa-Ōta clan.
He inherited the leadership of the Ōta clan on his father's death in 1734, but was not confirmed in the position of daimyō of Tatebayashi Domain until 1740.
On September 25, 1746 was reassigned from Tatebayashi to Kakegawa Domain in Tōtōmi Province, (modern-day Shizuoka Prefecture) replacing Ogasawara Nagayuki.
He died at Kakegawa on January 12, 1716, leaving the domain to his son, Ōta Sukeyoshi.
Ōta Suketoshi was married to an adopted daughter of Itakura Shigeharu, daimyō of Ise-Kameyama Domain.