Downsville is an unincorporated census-designated place in the Town of Dunn, in Dunn County, Wisconsin, United States. The community was founded at a crossing of the Red Cedar River in 1855. As of the 2010 census, its population was 146.
The Dunn County Historical Society's Empire in Pine Museum is located in Downsville. About 3 miles south of the community lies the girlhood home of Caddie Woodlawn, preserved at the Caddie Woodlawn Park.