Browneller Run is a long 2nd order tributary to the Youghiogheny River in Fayette County, Pennsylvania. This is the only stream of this name in the United States.
Browneller Run rises about 3 miles northeast of Arnold City, Pennsylvania in Westmoreland County, and then flows southeast into Fayette County to join the Youghiogheny River across from Banning.
Browneller Run drains of area, receives about 40.6 in/year of precipitation, has a wetness index of 317.83, and is about 39% forested.
Browneller Run is the location of Brownller Run Confluence BDA, which contains a mature upland forest and a riverine forest as well as a rare plant species.