| Stony Brook Branch | |
| Map: | Stony Brook Branch.JPG |
| Source1 Coordinates: | 40.3586°N -74.8106°W |
| Mouth Coordinates: | 40.3517°N -74.7839°W |
| Subdivision Type1: | Country |
| Mouth Elevation: | 151feet |
| River System: | Raritan River system |
Stony Brook Branch is a tributary of the Stony Brook in Mercer County, New Jersey in the United States.
The Stony Brook Branch starts at 40.3586°N -74.8106°W,[1] in Sourland Mountain near Route 31 (Pennington Road). It flows east, crossing Route 31 and Pennington Hopewell Road before draining into the Stony Brook at 40.3517°N -74.7839°W.[1]