| East Branch Mohawk River | |
| Pushpin Map: | New York Adirondack Park#USA |
| Pushpin Map Caption: | Location of the mouth of East Branch Mohawk River |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | New York |
| Subdivision Type3: | Region |
| Subdivision Name3: | Central New York Region |
| Subdivision Type4: | Counties |
| Subdivision Name4: | Lewis, Oneida |
| Subdivision Type5: | Towns |
| Subdivision Name5: | West Turin, Ava, Lee |
| Source1 Location: | S of Mohawk Hill |
| Source1 Coordinates: | 43.5142°N -75.4671°W |
| Mouth: | Mohawk River |
| Mouth Location: | E of West Branch |
| Mouth Coordinates: | 43.3709°N -75.4682°W[1] |
| Mouth Elevation: | 932feet |
East Branch Mohawk River is a river in Lewis County and Oneida County in the U.S. state of New York. It begins south of the hamlet of Mohawk Hill, flows through the hamlet of West Leyden and empties into Mohawk River east of the hamlet of West Branch.