| Chase Brook | |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | New York |
| Source1 Location: | Delaware County, New York |
| Mouth: | West Branch Delaware River |
| Mouth Location: | Rock Rift, New York, Delaware County, New York, United States |
| Mouth Coordinates: | 42.0936°N -75.1964°W |
| Basin Size: | 4.75sqmi |
| Tributaries Left: | Spencer Brook |
Chase Brook is a river in Delaware County, New York. It flows into the West Branch Delaware River by Rock Rift.[1]