| Plum Run (White Run tributary) | |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Pennsylvania |
| Subdivision Type3: | Region |
| Subdivision Name3: | Adams County |
Plum Run is a Pennsylvania stream and tributary of White Run which flows through East Cavalry Field of the Gettysburg National Military Park. The run forms a man-made lake above the Lake Heritage dam near the run's mouth along the Baltimore Pike.