| Willis Branch | |
| Name Other: | Tributary to Leipsic River |
| Map Size: | 180 |
| Map Alt: | Map of Willis Branch mouth |
| Pushpin Map: | Delaware#USA |
| Pushpin Map Size: | 180 |
| Pushpin Map Alt: | Location of Willis Branch mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Delaware |
| Subdivision Type3: | County |
| Subdivision Name3: | Kent |
| Length: | 3.23miles[1] |
| Discharge1 Avg: | 3.42cuft/s at mouth with Leipsic River[2] |
| Source1: | Pond on the Fork Branch divide |
| Source1 Location: | about 0.5 miles east of Seven Hickories, Delaware |
| Source1 Coordinates: | 39.2119°N -75.6164°W[3] |
| Source1 Elevation: | 52feet[4] |
| Mouth: | Leipsic River (Garrisons Lake) |
| Mouth Location: | about 1.5 miles northwest of Bishops Corner, Delaware |
| Mouth Coordinates: | 39.2439°N -75.5953°W |
| Mouth Elevation: | 7feet |
| Progression: | southeast |
| River System: | Leipsic River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | Lynnbury Woods Road, Moorton Road |
Willis Branch is a 3.23miles long 2nd order tributary to the Leipsic River in Kent County, Delaware.
Willis Branch rises in a pond on the Fork Branch divide about 0.5 miles east of Seven Hickories, Delaware.[4]
Willis Branch drains of area, receives about 45.0 in/year of precipitation, has a topographic wetness index of 557.46 and is about 8.0% forested.[2]