South Union
- Old South Union Church
- Shaker Museum at South Union
- South Union Missionary Baptist Church
- South Union School
- South Union Shaker Center House and Preservatory
- South Union Street Historic District (Concord, North Carolina)
- South Union Street Historic District (disambiguation)
- South Union Street–Boardman River Bridge
- South Union Township, Pennsylvania
- South Union, Kentucky
- South Union, South Carolina