Musashi (武蔵町 Musashi-machi) was a town located in Higashikunisaki District, Ōita, Japan.
On March 31, 2006 Musashi was merged with the towns of Kunisaki (old), Aki and Kunimi, all from Higashikunisaki District, to form the new city of Kunisaki.
As of 2003, the town had an estimated population of 5,958 and the density of 142.40 persons per km². The total area was 41.84 km².