| Rock Brook | |
| Source1 Coordinates: | 40.4336°N -74.7447°W |
| Mouth Coordinates: | 40.4108°N -74.6733°W |
| Subdivision Type1: | Country |
| Mouth Elevation: | 52feet |
Rock Brook is a tributary of Beden Brook in Somerset County, New Jersey in the United States.
Rock Brook starts at 40.4336°N -74.7447°W.[1] It flows south through the town of Skillman, picking up several tributaries, until it enters a dammed section called Sylvan Lake. It then continues west before draining into Beden Brook at 40.4108°N -74.6733°W.[1]