Places beginning with UN in Pennsylvania, United States
- Unamis
- Undercliff
- Unicorn
- Union
- Union
- Union Center
- Union City
- Union City, Borough of
- Union Corner
- Union County
- Union Dale
- Union Dale, Borough of
- Union Deposit
- Union Furnace
- Union Grove
- Union Hill
- Union Hill
- Union Mills
- Union Square
- Uniontown
- Uniontown
- Uniontown
- Uniontown
- Uniontown
- Uniontown, City of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union, Township of
- Union Valley
- Unionville
- Unionville
- Unionville
- Unionville
- Unionville
- Unionville
- Unionville
- Unionville
- Unionville, Borough of
- Union Water Works
- United
- Unity
- Unity Junction
- Unity, Township of
- Unityville
- Universal
- University City (subdivision)
- University Heights
- University Park
- Uno