| Pettit Brook | |
|---|---|
 | |
| Location | |
| Country | United States |
| State | New York |
| Physical characteristics | |
| Mouth | West Kill |
• location | Spruceton, New York, United States |
• coordinates | 42°11′06″N 74°16′45″W / 42.18500°N 74.27917°W |
Basin size | .30 mi2 (0.78 km2) |
Pettit Brook is a river that converges with West Kill east of Spruceton, New York.