Union is the name of some places in the U.S. state of Wisconsin: Union, Burnett County, Wisconsin, a town Union, Door County, Wisconsin, a town Union, Eau Claire County, Wisconsin, a town Union (community), Eau Claire County, Wisconsin, an unincorporated community Union, Grant County, Wisconsin, an unincorporated community Union, Pierce County, Wisconsin, a town Union, Rock County, Wisconsin, a town Union (community), Rock County, Wisconsin, an unincorporated community Union, Vernon County, Wisconsin, a town Union, Waupaca County, Wisconsin, a town