| Haynes Brook | |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | New York |
| Mouth: | Mohawk River |
| Mouth Location: | Hillside, New York |
| Mouth Coordinates: | 43.3592°N -75.415°W[1] |
| Mouth Elevation: | 739feet |
| Basin Size: | 3.75sqmi |
Haynes Brook flows into the Mohawk River in Hillside, New York.[2]