| Chestnut Run | |
| Name Other: | Tributary to Little Mill Creek |
| Map Size: | 180 |
| Map Alt: | Map of Chestnut Run mouth |
| Pushpin Map: | Delaware#USA |
| Pushpin Map Size: | 180 |
| Pushpin Map Alt: | Location of Chestnut Run mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Delaware |
| Subdivision Type3: | County |
| Subdivision Name3: | New Castle |
| Subdivision Type4: | City |
| Subdivision Name4: | Elsmere |
| Length: | 1.63miles[1] |
| Discharge1 Avg: | 1.74cuft/s at mouth with Little Mill Creek[2] |
| Source1: | Brandywine Creek divide |
| Source1 Location: | Silverbrook, Delaware |
| Source1 Coordinates: | 39.7594°N -75.5997°W[3] |
| Source1 Elevation: | 150feet[4] |
| Mouth: | Little Mill Creek |
| Mouth Location: | Elsmere, Delaware |
| Mouth Coordinates: | 39.7367°N -75.6067°W |
| Mouth Elevation: | 75feet |
| Progression: | southwest |
| River System: | Christina River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | DE 48 Oak Hill Drive DE 34 Jefferson Avenue DE 2 Forest Avenue |
Chestnut Run is a 1.63miles long 2nd order tributary to Little Mill Creek in New Castle County, Delaware.
Chestnut Run rises on the Brandywine Creek divide at Silverside in New Castle County, Delaware. Chestnut Run then flows southwest to meet Little Mill Creek at Elsmere, Delaware.[4]
Chestnut Run drains of area, receives about 46.8 in/year of precipitation, has a topographic wetness index of 487.43 and is about 12.4% forested.[2]