| Lake Brook | |
| River | |
| Country | United States |
|---|---|
| State | New York |
| Source | Odell Lake |
| - location | Delaware County, New York |
| Mouth | West Branch Delaware River |
| - location | Hobart, New York, Delaware County, New York, United States |
| - coordinates | 42°22′18″N 74°41′14″W / 42.37167°N 74.68722°WCoordinates: 42°22′18″N 74°41′14″W / 42.37167°N 74.68722°W |
| Basin | 6.90 sq mi (18 km2) |
Lake Brook flows into the West Branch Delaware River by Hobart, New York.