| Watnong Mountain | |
| Elevation Ft: | 965 |
| Elevation Ref: | [1] |
| Location: | Morris County, New Jersey, U.S. |
| Coordinates: | 40.849°N -74.4929°W[2] |
| Topo: | USGS Morristown |
| Easiest Route: | Road |
Watnong Mountain is a mountain in Morris County, New Jersey. The major peak rises to 965feet. It is located in Parsippany-Troy Hills Township and overlooks Morris Plains to the east. It is part of the New York–New Jersey Highlands of the Reading Prong.