was a town located in Nishiyatsushiro District, Yamanashi Prefecture, Japan.
As of 2003, the town had an estimated population of 4,047 and a population density of 137.33 persons per km<sup>2</sup>. The total area was 29.47 km<sup>2</sup>.
On October 1, 2005, Mitama, along with the towns of Ichikawadaimon and Rokugà  (all from Nishiyatsushiro District), was merged to create the town of Ichikawamisato.