| Lovell 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: | Carroll |
| Subdivision Type4: | Towns |
| Subdivision Name4: | Moultonborough, Ossipee |
| Length: | 9.5miles |
| Source1: | Ossipee Mountains |
| Source1 Location: | Moultonborough |
| Source1 Coordinates: | 43.7533°N -71.3025°W |
| Source1 Elevation: | 2230feet |
| Mouth: | Ossipee Lake |
| Mouth Location: | Ossipee |
| Mouth Coordinates: | 43.7836°N -71.1539°W |
| Mouth Elevation: | 407feet |
| Tributaries Left: | Gulf Brook, Jackson Brook |
| Tributaries Right: | South Brook, White Brook |
The Lovell River is a 9.5adj=midNaNadj=mid[1] river in eastern New Hampshire in the United States. It is a tributary of Ossipee Lake, part of the Saco River watershed leading to the Atlantic Ocean.
The Lovell River flows out of the Ossipee Mountains, a circular mountain range lying south of the White Mountains. The river rises in the northeastern corner of the town of Moultonborough at the saddle between Faraway Mountain and Mount Shaw, the highest peaks in the Ossipees. The Lovell River flows east into the town of Ossipee, passing just south of Conner Pond and leaving the mountains at New Hampshire Route 16, after which it crosses a narrow river delta and enters Ossipee Lake.