is a town located in Okhotsk Subprefecture, Hokkaido, Japan.
As of September 2016, the town has an estimated population of 5,011 and a population density of 7 persons per km<sup>2</sup>. The total area is 716.60 km<sup>2</sup>.
Tsubetsu's mascot is . He is an honest and energetic mizunara wood log bear kamuy who likes to play rugby. As such, he trains rugby players from all over the world.