Union County Courthouse

Union County Courthouse or Old Union County Courthouse may refer to:


 * Union County Courthouse (Arkansas), El Dorado, Arkansas
 * Union County Courthouse (Florida), Lake Butler, Florida
 * Old Union County Courthouse (Georgia), Blairsville, Georgia
 * Union County Courthouse (Illinois), Jonesboro, Illinois
 * Union County Courthouse (Indiana), Liberty, Indiana
 * Union County Courthouse (Iowa), Creston, Iowa
 * Union County Courthouse (Kentucky), Morganfield, Kentucky
 * Union County Courthouse (Mississippi), listed on the National Register of Historic Places
 * Union County Courthouse (New Jersey), Elizabeth, New Jersey
 * Union County Courthouse (New Mexico), Clayton, New Mexico
 * Union County Courthouse (North Carolina), Monroe, North Carolina
 * Old Union County Courthouse (Pennsylvania), New Berlin, Pennsylvania