| Moose 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: | Coos |
| Subdivision Type4: | Towns |
| Subdivision Name4: | Randolph, Gorham |
| Length: | 11.7miles |
| Source1: | Mount Adams |
| Source1 Location: | Randolph |
| Source1 Coordinates: | 44.3461°N -71.32°W |
| Source1 Elevation: | 768m (2,520feet) |
| Mouth: | Androscoggin River |
| Mouth Location: | Gorham |
| Mouth Coordinates: | 44.395°N -71.1875°W |
| Mouth Elevation: | 775feet |
| Tributaries Left: | Carlton Brook |
| Tributaries Right: | Cold Brook, Snyder Brook, Bumpus Brook, Townline Brook |
The Moose River is an 11.7adj=midNaNadj=mid[1] stream in northern New Hampshire in the United States. It is a tributary of the Androscoggin River, which flows south and east into Maine, joining the Kennebec River near the Atlantic Ocean.
The Moose River rises in the town of Randolph, New Hampshire, on the northern slopes of Mount Adams. The river quickly enters the wide valley between the Presidential Range to the south and the Crescent Mountain Range to the north and turns east to flow to the Androscoggin River in Gorham. An inactive railroad line owned by the state of New Hampshire, now known as the Presidential Rail Trail, parallels the Moose River for most of the river's length.