Toba Domain (鳥羽藩 Toba-han?) was a Japanese domain of the Edo period, located in Shima Province (part of modern-day Mie Prefecture), Japan. It was centered on Toba Castle in what is now the city of Toba.
During the Sengoku period, most of Shima Province came under the control of Kuki Yoshitaka, a retainer of Oda Nobunaga, who had a fleet of armored ships and controlled maritime traffic around Ise Bay. The Kuki clan fought on both sides during the Battle of Sekigahara, with Kuki Yoshitaka siding with the western forces loyal to Toyotomi Hideyori, and his son Kuki Moritaka, joining the eastern armies of Tokugawa Ieyasu.
With the establishment of the Tokugawa shogunate, Kuki Moritaka was confirmed as daimyō of Toba, initially with revenues of 35,000 koku, growing to 55,000 koku under his son Kuki Hisataka, who was transferred to Sanda Domain in Settsu Province.
The Kuki were replaced by the tozama Naito clan, which ruled Toba to 1680. The domain then reverted to tenryo status under the direct control of the shogunate for one year. It then came under the control of the Doi clan (1681-1691), Ogyu-Matsudaira clan (1691-1710), Itakura clan (1710-1717), and Toda-Matsudaira clan (1717-1725) before finally coming under the Inagaki clan (1725-1871), where it remained until the Meiji restoration.