Mihara is a village located in Hata District, Kōchi Prefecture, Japan. As of 31 July 2022, the village had an estimated population of 1449 in 751 households and a population density of 17 persons per km2. The total area of the village is 39.60 square kilometres (15.29 sq mi).

Kōchi Prefecture is a prefecture of Japan located on the island of Shikoku. Kōchi Prefecture has a population of 669,516 and has a geographic area of 7,103 km2. Kōchi Prefecture borders Ehime Prefecture to the northwest and Tokushima Prefecture to the northeast.