Oshkosh is a town in Winnebago County, Wisconsin, United States. The population was 2,439 at the 2020 census. It is a northern suburb of the larger City of Oshkosh which it is located adjacent to and partially within. The unincorporated communities of Nichols Shore Acres, Plummer Point, Shangri La Point, and Winnebago are located within the town, as is part of the census-designated place of Butte des Morts.