| Bentley Run | |
| Name Other: | Tributary to South Branch French Creek |
| Map Size: | 300 |
| Pushpin Map: | Pennsylvania#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of the mouth of Bentley Run |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Pennsylvania |
| Subdivision Type3: | County |
| Subdivision Name3: | Erie |
| Length: | 1.2miles[1] |
| Discharge1 Location: | Union City, Pennsylvania |
| Discharge1 Avg: | 8.09cuft/s at mouth with South Branch French Creek[2] |
| Source1: | divide between Alder Run, Bentley Run and Pine Run |
| Source1 Location: | just upstream of Union City Reservoir, about 1.0 mile northeast of Union City, Pennsylvania |
| Source1 Coordinates: | 41.9308°N -79.7942°W[3] |
| Source1 Elevation: | 1520feet[4] |
| Mouth: | South Branch French Creek |
| Mouth Location: | Union City, Pennsylvania |
| Mouth Coordinates: | 41.8972°N -79.8367°W |
| Mouth Elevation: | 1266feet |
| Progression: | South Branch French Creek → French Creek → Allegheny River → Ohio River → Mississippi River → Gulf of Mexico |
| River System: | Allegheny River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Waterbodies: | Union City Reservoir |
| Bridges: | Hoyt Road, US 6, Bridge Street, Willow Street |
Bentley Run is a 1.2miles long 2nd order tributary to South Branch French Creek in Erie County, Pennsylvania.
Bentley Run rises in Union Township of southern Erie County, Pennsylvania and flows southwest towards Union City, Pennsylvania.
Bentley Run drains 4.1 square miles of Erie Drift Plain (glacial geology). The watershed receives an average of 46.4 in/year of precipitation. [5]