| Nichols Run | |
| Name Other: | Tributary to Tunungwant Creek |
| Pushpin Map: | New York#USA |
| Pushpin Map Caption: | Location of Nichols Run mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | New York |
| Subdivision Type3: | County |
| Subdivision Name3: | Cattaraugus |
| Length: | 3.73miles[1] |
| Discharge1 Location: | Tunungwant Creek |
| Discharge1 Avg: | 7.88cuft/s at mouth with Tunungwant Creek[2] |
| Source1: | divide of Harrisburg Run |
| Source1 Location: | about 1 mile west of Harrisburg, New York |
| Source1 Coordinates: | 42.0128°N -78.562°W[3] |
| Source1 Elevation: | 2105feet |
| Mouth: | Tunungwant Creek |
| Mouth Location: | Limestone, New York |
| Mouth Coordinates: | 42.0273°N -78.6336°W |
| Mouth Elevation: | 1398feet |
| 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: | Quinn Road, Nichols Run Road (x3), Main Street, US 219, Splitter Road |
Nichols Run is a 3.73miles long first-order tributary to Tunungwant Creek.[1]
Nichols Run rises about west of Harrisburg, New York in Cattaraugus County and then flows northwest to meet Tunungwant Creek in Limestone, New York.
Nichols Run drains of area, receives about of precipitation, and is about 85.32% forested.