| Blacks Creek | |
| Name Other: | Tributary to Slippery Rock Creek |
| Map Size: | 300 |
| Pushpin Map: | USA Pennsylvania#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of Blacks Creek mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States of America |
| Subdivision Type2: | State |
| Subdivision Name2: | Pennsylvania |
| Subdivision Type3: | County |
| Subdivision Name3: | Butler Venango |
| Subdivision Type4: | Townships |
| Subdivision Name4: | Marion (Butler) Irwin (Venango) |
| Length: | 4.8miles[1] |
| Discharge1 Avg: | 13.42cuft/s at mouth with Slippery Rock Creek[2] |
| Source1: | divide between Blacks Creek and Scrubgrass Creek |
| Source1 Location: | about 2 miles south of Nectarine, Pennsylvania |
| Source1 Coordinates: | 41.1758°N -79.9214°W[3] |
| Source1 Elevation: | 1420feet[4] |
| Mouth: | Slippery Rock Creek |
| Mouth Location: | about 0.25 miles west of Boyers, Pennsylvania |
| Mouth Coordinates: | 41.1114°N -79.9156°W |
| Mouth Elevation: | 1190feet |
| Progression: | Slippery Rock Creek → Connoquenessing Creek → Beaver River → Ohio River → Mississippi River → Gulf of Mexico |
| River System: | Beaver River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | County Line Road, Porter Road, Creek Bottom Road, Eau Claire Road |
Blacks Creek is a small tributary of Slippery Rock Creek in western Pennsylvania. The stream rises in southeastern Venango County and flows south entering Slippery Rock Creek near Boyers, Pennsylvania. The watershed is roughly 31% agricultural, 62% forested and the rest is other uses.[2]