| Official Name: | Valley Brook, New York |
| Settlement Type: | Hamlet |
| Pushpin Map: | New York#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | Region |
| Subdivision Name2: | Central New York Region |
| Subdivision Type3: | County |
| Subdivision Name3: | Montgomery |
| Subdivision Type4: | Town |
| Subdivision Name4: | Minden |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 404[1] |
| Coordinates: | 42.9289°N -74.6592°W |
| Elevation M: | 123 |
| Postal Code Type: | ZIP code |
| Area Code: | 315 |
Valley Brook is a hamlet located west of Fort Plain, on NY 80 in Montgomery County, New York, United States. Otsquene Creek enters Otsquago Creek just west of Valley Brook, and the Otsquago Creek flows east through the hamlet.