Kawauchi, Ehime

 was a town located in Onsen District, Ehime Prefecture, Japan.
As of 2003, the town had an estimated population of 11,159 and a density of 100.66 persons per km². The total area was 110.86 km².
On September 21, 2004, Kawauchi, along with the town of Shigenobu (also from Onsen District), was merged to create the city of Tōon and no longer exists as an independent municipality.