was a town located in Yamagata District, Hiroshima Prefecture, Japan.
As of 2003, the town had an estimated population of 3,057 and a density of 15.91 persons per km<sup>2</sup>. The total area was 192.09 km<sup>2</sup>.
On October 1, 2004, Togouchi, along with the town of Kake, and the village of Tsutsuga (all from Yamagata District), was merged to create the town of Akià Âta.