| Jennings Run | |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Maryland |
| Source1 Location: | near Jennings Randolph Lake, Garrett County, Maryland, Backbone Mountain ridge |
| Source1 Coordinates: | 39.4431°N -79.1889°W |
| Mouth Elevation: | 0feet |
| River System: | Potomac River#North Branch Potomac River |
| Jennings Run | |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Maryland |
| Subdivision Type5: | City |
| Subdivision Name5: | Frostburg |
| Source1 Location: | near Frostburg, Allegany County, Maryland, Savage Mountain ridge |
| Source1 Coordinates: | 39.6683°N -78.9217°W |
| Mouth Elevation: | 0feet |
| River System: | Potomac River#North Branch Potomac River |
Jennings Run (Garrett County) and Jennings Run (Allegany County) are Maryland tributaries to Three Forks Run and Wills Creek, respectively.
Jennings Run (Allegany County) begins near Frostburg.[1] Mount Savage Run joins Jennings Run at Mount Savage, and another small creek beginning near Wellersburg adds its waters to Jennings Run at Barrelville. Jennings Run continues to Corriganville, where it merges with Wills Creek.