| McLaughlin Run | |
| Name Other: | Tributary to Chartiers Creek |
| Map Size: | 300 |
| Pushpin Map: | USA Pennsylvania#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of McLaughlin Run mouth |
| Pushpin Map Alt: | Map of McLaughlin Run mouth location |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Pennsylvania |
| Subdivision Type3: | County |
| Subdivision Name3: | Allegheny |
| Subdivision Type4: | Borough |
| Subdivision Name4: | Bethel Park |
| Length: | 6.39miles[1] |
| Discharge1 Location: | Chartiers Creek |
| Discharge1 Avg: | 8.17cuft/s at mouth with Chartiers Creek[2] |
| Source1: | Saw Mill Run divide |
| Source1 Location: | Bethel Park, Pennsylvania |
| Source1 Coordinates: | 40.3211°N -80.0742°W[3] |
| Source1 Elevation: | 1180feet[4] |
| Mouth: | Chartiers Creek |
| Mouth Location: | Bridgeville, Pennsylvania |
| Mouth Coordinates: | 40.3633°N -80.1036°W |
| Mouth Elevation: | 800feet[5] |
| Progression: | Chartiers Creek → Ohio River → Mississippi River → Gulf of Mexico |
| River System: | Ohio River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | Graessers Run |
| Bridges: | Broad Street, Burnside Drive, Church Road, Greenwald Road, Logan Road, Walther Lane, McMurray Road, US 19, Panther Pass, Morrow Road, McMillan Road, McLaughlin Run Road (x2), Baldwin Street, Bower Hill Road |
McLaughlin Run is a 6.39miles long 2nd order tributary to Chartiers Creek in Allegheny County, Pennsylvania.
According to the Geographic Names Information System, it has also been known historically as:[3]
McLaughlin Run rises in Bethel Park, Pennsylvania and then flows northwesterly to join Chartiers Creek in Bridgeville.[5]
McLaughlin Run drains of area, receives about 39.1 in/year of precipitation, has a wetness index of 351.90, and is about 9% forested.[2]