| Bear Brook | |
| Pushpin Map: | USA New York#USA |
| Pushpin Map Caption: | Location of the mouth of Bear Brook in New York |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | New York |
| Subdivision Type3: | County |
| Subdivision Name3: | Delaware |
| Source1 Coordinates: | 42.0943°N -75.1304°W |
| Mouth: | Baxter Brook |
| Mouth Coordinates: | 42.0793°N -75.1093°W[1] |
| Mouth Elevation: | 1421feet |
Bear Brook is a river in Delaware County in New York. It flows into Baxter Brook north of Harvard.