| White Marsh Branch | |
| Name Other: | Tributary to Nanticoke River |
| Map Size: | 180 |
| Pushpin Map: | Delaware#USA |
| Pushpin Map Size: | 180 |
| Pushpin Map Caption: | Location of White Marsh Branch mouth |
| Pushpin Map Alt: | Map of White Marsh Branch mouth location |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Delaware |
| Subdivision Type3: | County |
| Subdivision Name3: | Sussex Kent |
| Length: | 3.09miles[1] |
| Discharge1 Location: | Nanticoke River |
| Discharge1 Avg: | 6.81cuft/s at mouth with Nanticoke River[2] |
| Source1: | Prong No. 2 divide |
| Source1 Location: | Farmington, Delaware[3] |
| Source1 Coordinates: | 38.8614°N -75.5689°W[4] |
| Source1 Elevation: | 61feet |
| Mouth: | Nanticoke River |
| Mouth Location: | about 0.5 miles northeast of Greenwood, Delaware[5] |
| Mouth Coordinates: | 38.82°N -75.5775°W |
| Mouth Elevation: | 43feet |
| Progression: | Nanticoke River → Chesapeake Bay → Atlantic Ocean |
| River System: | Nanticoke River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | Booth Branch |
| Bridges: | Marsh Branch Road, Woodyard Road |
White Marsh Branch is a 3.09miles long 2nd order tributary to the Nanticoke River in Sussex County, Delaware.
White Marsh Branch rises at Farmington, Delaware in Kent County[3] and then flows south into Sussex County to join the Nanticoke River about 0.5 miles northeast of Greenwood, Delaware.[5]
White Marsh Branch drains of area, receives about 45.3 in/year of precipitation, has a topographic wetness index of 703.88 and is about 4% forested.[2]