| Herring Run | |
| Name Other: | Tributary to Blackbird Creek |
| Map Size: | 180 |
| Map Alt: | Map of Herring Run mouth |
| Pushpin Map: | Delaware |
| Pushpin Map Size: | 180 |
| Pushpin Map Alt: | Location of Herring Run mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Delaware |
| Subdivision Type3: | County |
| Subdivision Name3: | New Castle |
| Length: | 2.26miles[1] |
| Discharge1 Location: | Blackbird Creek |
| Discharge1 Avg: | 2.42cuft/s at mouth with Blackbird Creek[2] |
| Source1: | On divide between Herring Run and Appoquinimink River |
| Source1 Location: | about 0.5 miles east of Townsend, Delaware |
| Source1 Coordinates: | 39.3969°N -75.6758°W[3] |
| Source1 Elevation: | 70feet[4] |
| Mouth: | Blackbird Creek |
| Mouth Location: | about 0.5 miles east of H&H Corner, Delaware |
| Mouth Coordinates: | 39.3833°N -75.6419°W |
| Mouth Elevation: | 0feet |
| Progression: | Blackbird Creek → Delaware Bay → Atlantic Ocean |
| River System: | Delaware River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | DE 1, US 13, Union Church Road |
Herring Run is a 2.26adj=midNaNadj=mid tributary to Blackbird Creek in northern Delaware in the United States.
Herring Run rises east of Townsend in southern New Castle County, Delaware and flows southeast to meet Blackbird Creek east of H&H Corner.
The Herring Run watershed is about 26% forested and 64% agricultural with the rest being other land uses. The watershed receives approximately 43.4 in/year of precipitation and has a wetness index of 602.69.[2]