Seto (瀬戸町 Seto-chō) was a town located in Nishiuwa District, Ehime, Japan.
On April 1, 2005 Seto, along with the town of Misaki, also from Nishiuwa District, was merged into the expanded town of Ikata.
As of 2003, the town had an estimated population of 2,696 and a density of 84.01 persons per km². The total area was 32.09 km².