Wannaska is an unincorporated community in Roseau County, Minnesota, United States.

The community is located 13 miles south of Roseau on State Highway 89 (MN 89).

Nearby places include Roseau and Hayes Lake State Park.

[2] According to Warren Upham, Wannaska is said to be the native Ojibwe name for the Roseau River.

[4][5][6] The Wannaska School, closed in 2006 and used as the community center until 2011, has since been turned into a motorsport repair business, Mechanical Innovations.