| Mill Creek | |
| Name Other: | Tributary to French Creek |
| Map Size: | 300 |
| Pushpin Map: | Pennsylvania#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of Mill Creek mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Pennsylvania |
| Subdivision Type3: | County |
| Subdivision Name3: | Mercer Venango |
| Length: | 11.36miles[1] |
| Discharge1 Location: | French Creek |
| Discharge1 Avg: | 25.09cuft/s at mouth with French Creek[2] |
| Source1: | North Deer Creek divide |
| Source1 Location: | about 3 miles north-northeast of New Vernon, Pennsylvania[3] |
| Source1 Coordinates: | 41.4439°N -80.0903°W[4] |
| Source1 Elevation: | 1425feet |
| Mouth: | French Creek |
| Mouth Location: | Utica, Pennsylvania |
| Mouth Coordinates: | 41.4336°N -79.9503°W |
| Mouth Elevation: | 1024feet |
| Progression: | French Creek → Allegheny River → Ohio River → Mississippi River → Gulf of Mexico |
| River System: | Allegheny River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
Mill Creek is a 11.36miles long 2nd order tributary to French Creek in Mercer and Venango County, Pennsylvania.
Mill Creek rises on the North Deer Creek divide about 3 miles north-northeast of New Vernon, Pennsylvania in Mercer County. Mill Creek then flows easterly into Venango County to meet French Creek at Utica, Pennsylvania.[3]
Mill Creek drains of area, receives about 43.4 in/year of precipitation, has a topographic wetness index of 444.64, and has an average water temperature of 8.19 °C.[2] The watershed is 58% forested.[2]