| Slocums River | |
| Name Other: | Slocum River, Pamanset |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Massachusetts |
| Subdivision Type3: | Region |
| Subdivision Name3: | Bristol County |
| Subdivision Type5: | Town |
| Subdivision Name5: | Dartmouth |
| Length: | 5.5miles |
| Source1: | Paskamanset River |
| Mouth: | Buzzards Bay |
| Mouth Coordinates: | 41.5294°N -70.9767°W |
Slocums River (sometimes seen as Slocum's River or Slocum River) is a 4.3adj=midNaNadj=mid[1] tidal river in southeastern Massachusetts in the United States. The Paskamanset River and Slocums River really form just a single river, but the freshwater portion kept its earlier Indian name, while the salt-water portion is named for the early settlers of the area, the Slocum family.[2]
The Slocums River flows through the town of Dartmouth to Buzzards Bay between Barneys Joy and Mishaum points.
The river is fronted by private lands and public reserves. The Trustees of Reservations and The Dartmouth Natural Resources Trust manage the 47acres Slocum's River Reserve along the west bank. Demarest Lloyd State Park includes the west bank of the mouth of the river and protects waterfowl marshland. Both properties offer walking trails and views of the river.
In 1652 English settlers Anthony Slocum and Ralph Russell settled in the Russells Mills area, the town was named after Ralph Russell, and subsequently the river running through the town was named after Anthony Slocum.[3]