| Lower Neponset River Trail | |
| Photo Size: | 280 |
| Length Mi: | 2.4 |
| Trailheads: | Port Norfolk, Dorchester; River Street, Mattapan (42.27°N -71.0732°W) |
| Use: | Hiking, bicycling |
| Difficulty: | Easy |
| Season: | Year-round |
| Sights: | Marsh, mills |
The Lower Neponset River Trail is a 2.4adj=midNaNadj=mid rail trail running along the Neponset River in the Dorchester section of Boston, Massachusetts. It roughly follows the path of the eastern part of the Dorchester and Milton Branch Railroad from the Port Norfolk neighborhood in Dorchester to the Central Avenue T Station in Milton, passing through Pope John Paul II Park, the Neponset Marshes, and the Lower Mills area.