Monzen, Ishikawa

 was a town located in Hōsu District (formerly from Fugeshi District), Ishikawa Prefecture, Japan.
As of 2003, the town had an estimated population of 7,512 and a density of 47.68 persons per km². The total area was 157.56 km².
On February 1, 2006, Monzen was merged into the expanded city of Wajima.