Penn Valley is a town in Lower Merion Township, Pennsylvania. Penn Valley residents share a zip code with either Narberth or Wynnewood because the town does not have its own post office. However, Penn Valley is its own distinct community with its own civic association.
- M. Night Shyamalan, a movie writer and director, grew up in Penn Valley.
- Teddy Pendergrass, a soul singer, lived in Penn Valley.
- Garry Maddox, a former Phillies center fielder.
- Aaron Mckie, a former 76ers shooting guard and current assistant coach for the team.
- Lawrence H. Summers, Ph.D., American economist, former United States Secretary of the Treasury, former president of Harvard University, and current chief economic advisor to President Barack Obama.