| Little River | |
| Pushpin Map: | New Hampshire#USA |
| Pushpin Map Size: | 250 px |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | New Hampshire |
| Subdivision Type3: | County |
| Subdivision Name3: | Rockingham |
| Subdivision Type4: | Towns |
| Subdivision Name4: | Kingston, Brentwood |
| Length: | 7.3miles |
| Source1 Location: | Kingston |
| Source1 Coordinates: | 42.9425°N -71.09°W |
| Source1 Elevation: | 175feet |
| Mouth: | Exeter River |
| Mouth Location: | Brentwood |
| Mouth Coordinates: | 42.975°N -71.0342°W |
| Mouth Elevation: | 65feet |
The Little River is a 7.3adj=midNaNadj=mid[1] stream in the towns of Kingston and Brentwood in Rockingham County, New Hampshire, United States. It is a tributary of the Exeter River, part of the Great Bay/Piscataqua River watershed in the New Hampshire Seacoast region. The river should not be confused with the Little River of Exeter, another tributary of the Exeter River less than 3miles away.
The Little River rises in the northwestern part of Kingston and follows a winding course generally northeast through flat or slightly hilly terrain. The river turns north as it enters Brentwood and reaches the Exeter River east of Brentwood's town center.