- Jimmy Stewart Museum
- 835 Philadelphia Street, Indiana, PA, 15701
- Kamin Science Center (Former Carnegie Science Center)
- One Allegheny Avenue, Pittsburgh, PA, 15212
- Katz Plaza
- Penn Avenue and Seventh Street, Pittsburgh, PA, 15222
- Kaufmann's Building
- 400 Fifth Avenue, Pittsburgh, PA, 15222
- Keane Theatre
- 5847 Meridian Road, Gibsonia, PA, 15044
- Kelly Strayhorn Theater
- 5941 Penn Avenue, Pittsburgh, PA, 15206
- Kelly Street (Homewood)
- 7200 Kelly Street, Pittsburgh, PA, 15208
- Kennywood Park
- 4800 Kennywood Blvd., West Mifflin, PA, 15122
- Kingfly Spirits
- 2613 Smallman Street, Pittsburgh, PA, 15222
- Klimpton Hotel Monaco
- 620 William Penn Place, Pittsburgh, PA, 15219