Bonar Creek is a long 1st order tributary to Dutch Fork in Washington County, Pennsylvania. This is the only stream of this name in the United States. There is a stream, called Bonar Creek, in the Province of Ontario.
According to the Geographic Names Information System, it has also been known historically as:
Bonar Creek rises about 3 miles southwest of Claysville, Pennsylvania, in Washington County and then flows northwest to join Dutch Fork at Coon Island.
Bonar Creek drains of area, receives about 40.7 in/year of precipitation, has a wetness index of 299.33, and is about 62% forested.