Nanbu (南部町, Nanbu-chō) is a town located in Saihaku District, Tottori Prefecture, Japan. Nanbu was founded on October 1, 2004 from the merger of the towns of Saihaku and Aimi, both from Saihaku District. As of 2013, the town has an estimated population of 11,538 and a density of 100 persons per km².