| West Branch Unadilla River | |
| Pushpin Map: | New York Adirondack Park#USA |
| Pushpin Map Caption: | Location of the mouth within New York |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | New York |
| Subdivision Type3: | Region |
| Subdivision Name3: | Central New York |
| Source1 Location: | Babcock Hill |
| Source1 Coordinates: | 42.9383°N -75.2186°W |
| Mouth: | Unadilla River |
| Mouth Location: | Unadilla Forks |
| Mouth Coordinates: | 42.8428°N -75.2422°W[1] |
| Mouth Elevation: | 1142feet |
| Tributaries Right: | Tionadara Creek |
The West Branch Unadilla River is a river in the state of New York. It flows into the Unadilla River near Unadilla Forks, New York.[2] This branch was known as Eghwagy Creek during the early 18th century.[3]