| West Branch | |
| 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: | Madison, Freedom, Ossipee |
| Length: | 5.5miles |
| Source1: | Silver Lake |
| Source1 Location: | Madison |
| Source1 Coordinates: | 43.8486°N -71.1714°W |
| Source1 Elevation: | 468feet |
| Mouth: | Ossipee Lake |
| Mouth Location: | Ossipee / Freedom |
| Mouth Coordinates: | 43.8089°N -71.1622°W |
| Mouth Elevation: | 407feet |
The West Branch is a 5.5adj=midNaNadj=mid[1] river located in eastern New Hampshire in the United States. It is the northern tributary of Ossipee Lake, part of the Saco River watershed leading to the Atlantic Ocean.
The West Branch begins at the outlet of Silver Lake in the southern corner of Madison, New Hampshire, and takes a winding course south towards Ossipee Lake. It forms the boundary between the towns of Freedom and Ossipee. The flat, sandy terrain through which the river flows is known as the West Branch Pine Barrens and is the site of a nature preserve owned and managed by The Nature Conservancy.