was a town located in Shà «sà  District, Ehime Prefecture, Japan.
As of 2003, the town had an estimated population of 9,668 and a density of 126.78 persons per km<sup>2</sup>. The total area was 76.26 km<sup>2</sup>.
On November 1, 2004, Komatsu, along with the city of Tà Âyo, and the town of Tanbara (also from Shà «sà  District), was merged into the expanded city of Saijà  and no longer exists as an independent municipality.