South Union

South Union may refer to a location in the United States:


 * South Union, Kentucky, an unincorporated community
 * South Union Shaker Center House and Preservatory
 * South Union, South Carolina, a census-designated place
 * South Union Missionary Baptist Church, Palestine, Texas
 * South Union School, Southborough, Massachusetts
 * South Union Street Historic District (disambiguation), locations in North Carolina
 * South Union Street Historic District (Concord, North Carolina)
 * South Union Street–Boardman River Bridge, Michigan
 * South Union Township, Pennsylvania