McLaughlin Run is a 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:
McLaughlin Run rises in Bethel Park, Pennsylvania and then flows northwesterly to join Chartiers Creek in Bridgeville.
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.