Kobuchizawa was a town located in Kitakoma District, Yamanashi Prefecture, Japan.
As of 2003, the town had an estimated population of 6,127 and a density of 184.88 persons per km². The total area was 33.14 km².
On March 15, 2006, Kobuchizawa was merged into the expanded city of Hokuto. Therefore, Kitakoma District was dissolved as the result of this merger.