Suttsu (寿都町, Suttsu-chō) is a town located in Shiribeshi Subprefecture, Hokkaido, Japan.

As of September 2016, the town has an estimated population of 3,113, and a density of 33 persons per km2.

Precipitation is significant throughout the year, but the months from March to June are somewhat drier.

Fisheries comprise the main economic activity of Suttsu.

[4] Because of a decrease of fishery resources, Suttsu focuses on an aquaculture business now.