| West Branch Little Magalloway River | |
| Pushpin Map: | Maine#New Hampshire#USA |
| Pushpin Map Size: | 250 px |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | States |
| Subdivision Name2: | New Hampshire, Maine |
| Subdivision Type3: | Counties |
| Subdivision Name3: | Coos, NH |
| Subdivision Type4: | Townships |
| Subdivision Name4: | Pittsburg, NH |
| Length: | 5.3miles |
| Source1: | Stub Hill |
| Source1 Location: | Pittsburg, NH |
| Source1 Coordinates: | 45.13°N -71.0919°W |
| Source1 Elevation: | 2380feet |
| Mouth: | Middle Branch Little Magalloway River |
| Mouth Location: | North Oxford, ME |
| Mouth Coordinates: | 45.1325°N -71.0297°W |
| Mouth Elevation: | 1620feet |
The West Branch of the Little Magalloway River is a 5.3adj=midNaNadj=mid[1] river in northern New Hampshire and northwestern Maine in the United States. It is a tributary of the Middle Branch Little Magalloway River, located in the Androscoggin River watershed of Maine and New Hampshire.
The West Branch rises in Pittsburg, New Hampshire, north of 3627feet Stub Hill, the highest point in Pittsburg. The brook-sized river drops to the east into Maine, descending another 700 feet before joining the Middle Branch of the Little Magalloway a short distance upstream from Aziscohos Lake.