Suttsu (寿都郡 Suttsu-gun?) is a district located in Shiribeshi Subprefecture, Hokkaido, Japan.
As of 2004, the district has an estimated population of 7,316 and a density of 16.60 persons per km². The total area is 440.83 km².
Coordinates: 42°42′07″N 140°19′37″E / 42.702°N 140.327°E