| Blue Brook | |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | New York |
| Mouth: | Mohawk River |
| Mouth Location: | West Branch, New York |
| Mouth Coordinates: | 43.375°N -75.4478°W[1] |
| Mouth Elevation: | 858feet |
| Basin Size: | 3.46sqmi |
Blue Brook flows into the Mohawk River near West Branch, New York.[2]