| Mount Jefferson | |
| Elevation Ft: | 1,225 |
| Elevation Ref: | [1] |
| Location: | Worcester County, Massachusetts, U.S. |
| Map: | USA Massachusetts |
| Coordinates: | 42.4918°N -72.0395°W |
| Coordinates Ref: | [2] |
Mount Jefferson, also known as Muzzy Hill, is a hill ridgeline located in Worcester County of Massachusetts, two miles NNW of Hubbardston. Mount Jefferson Road passes along the hill crest.