The Nanbu domain was a feudal domain in Japan during the Edo period, located in what is now part of Iwate Prefecture. It was established in the early 17th century and was ruled by the Nanbu clan, a prominent samurai family. The domain was known for its agricultural production and rich natural resources, including minerals and timber. The Nanbu domain played a significant role in regional politics and culture. Its capital was Kunohe, and the domain was characterized by a strong emphasis on education and the arts. The Nanbu clan's influence extended beyond its borders, contributing to the development of the Tōhoku region.