is a town located in Sorachi Subprefecture, Hokkaido, Japan.
As of 1 October 2020, the town has an estimated population of 3,278. The total area is 39.91 km<sup>2</sup>. There is a microgravity test facility located in Kamisunagawa used for astronomic purposes.
Since 1980, Kamisunagawa has been the sister city of Sparwood in British Columbia, Canada.
Kamisunagawa's mascot is . He is a shiitake mushroom. His name is unknown but his name come the either "shiitake town", "see town" or "town of shiitake and coal".