Tōbetsu (当別町; -chou) is a town located in Ishikari District, Ishikari, Hokkaido, Japan.
As of 2004, the town has an estimated population of 20,158 and a density of 47.69 persons per km². The total area is 422.71 km².
Located on the north part of the Ishikari Subprefecture of Hokkaido, the shape of the municipality is long to north and south. It overlaps each other with the catchment area of the Tōbetsu river approximately. Tōbetsu means 'river from marsh' in Ainu language and in Japanese it is called 'Tōbetsu gawa(river)'. Low mountains occupies northern area of the municipality The southern area is a part of the Ishikari plains.
Sapporo, the largest city of Hokkaidō, lays on southwest of the Tōbetsu. The large river of Ishikari had devided Tōbetsu from Sapporo long time. In 1934 the Sasshō Line railload conneted. And another bridges built in the latter half of 20th century have reduced the traffic obstacle. Tōbetsu has producted rice and recently flowers. Residential buildings are increasing modestly because of its better access to Sapporo.
