| Leonard Brook | |
| Name Other: | Tributary to Tunungwant Creek |
| Pushpin Map: | New York#USA |
| Pushpin Map Caption: | Location of Leonard Brook mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | New York |
| Subdivision Type3: | County |
| Subdivision Name3: | Cattaraugus |
| Length: | 3.39miles[1] |
| Discharge1 Location: | Tunungwant Creek |
| Discharge1 Avg: | 7.48cuft/s at mouth with Tunungwant Creek[2] |
| Source1: | divide of Flatstone Creek |
| Source1 Location: | about 3 miles east of Limestone, New York |
| Source1 Coordinates: | 42.0276°N -78.6392°W[3] |
| Source1 Elevation: | 2120feet |
| Mouth: | Tunungwant Creek |
| Mouth Location: | about 1.5 miles north of Limestone, New York |
| Mouth Coordinates: | 42.0509°N -78.6392°W |
| Mouth Elevation: | 1381feet |
| Progression: | Tunungwant Creek → Allegheny River → Ohio River → Mississippi River → Gulf of Mexico |
| River System: | Allegheny River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | Leonard Run Road (x2), Loney Hollow Road, N Main Street, US 219 |
Leonard Brook is a 3.39miles long first-order tributary to Tunungwant Creek.[1]
Leonard Brook rises about east of Limestone, New York in Cattaraugus County and then flows northwest, west, and north to meet Tunungwant Creek about north of Limestone, New York.
Leonard Brook drains of area, receives about of precipitation, and is about 85.18% forested.