Penn Township is a township in Westmoreland County, Pennsylvania, United States.

Bushy Run Battlefield Park is a historical park that is operated by the Pennsylvania Historical and Museum Commission (PHMC) and the Bushy Run Battlefield Heritage Society on 218 acres (88 ha) in Penn Township, Westmoreland County, Pennsylvania in the United States. It was the site of the Battle of Bushy Run fought on August 5–6, 1763 during the Pontiac's Rebellion. The battle was a major victory for the British and enabled them to secure their control of the Ohio River Valley and what was to become the Northwest Territory. Bushy Run Battlefield Park was established as a Pennsylvania State Park in the 1920s and became a National Historic Landmark in 1960. The Visitor Center is open Wednesday through Saturday from 9:00 am until 5:00 pm, and Sunday from noon to 5:00 pm, during the months of May–October. The Visitor Center hosts a museum exhibit entitled, "The March to Bushy Run", a theater, a gift shop and battlefield tours. Bushy Run Battlefield Park is the only historic site or museum that deals exclusively with Pontiac's Rebellion. Battle reenactments are held annually on the first full weekend of August. The park is on Pennsylvania Route 993 near Harrison City and Jeannette.