| Horse Brook | |
| River | |
| Country | United States |
|---|---|
| State | New York |
| Source | |
| - location | Delaware County, New York |
| Mouth | Beaver Kill |
| - location | Roscoe, New York, Delaware County, New York, United States |
| - coordinates | 41°57′23″N 74°56′04″W / 41.95639°N 74.93444°WCoordinates: 41°57′23″N 74°56′04″W / 41.95639°N 74.93444°W |
| Basin | 2.64 sq mi (7 km2) |
Horse Brook flows into Beaver Kill by Roscoe, New York.