Shūtō (周東町 Shūtō-chō) was a town located in Kuga District, Yamaguchi, Japan.
On March 20, 2006 Shūtō, along with the towns of Kuga, Mikawa, Miwa, Nishiki and Yū, and the village of Hongō, all from Kuga District, was merged into the expanded city of Iwakuni.
As of 2003, the town had an estimated population of 14,396 and a density of 99.96 persons per km². The total area was 144.02 km².