| Parker Branch | |
| Name Other: | Tributary to Gum Branch |
| Map Size: | 180 |
| Pushpin Map: | Delaware#USA |
| Pushpin Map Size: | 180 |
| Pushpin Map Caption: | Location of Parker Branch mouth |
| Pushpin Map Alt: | Map of Parker Branch mouth location |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Delaware |
| Subdivision Type3: | County |
| Subdivision Name3: | Sussex |
| Length: | 3.21miles[1] |
| Discharge1 Location: | Gum Branch |
| Discharge1 Avg: | 2.94cuft/s at mouth with Gum Branch[2] |
| Source1: | Beaver Dam Branch divide |
| Source1 Location: | about 2 miles west-southwest of Ellendale, Delaware[3] |
| Source1 Coordinates: | 38.8047°N -75.485°W[4] |
| Source1 Elevation: | 45feet |
| Mouth: | Gum Branch |
| Mouth Location: | about 3 miles southwest of Ellendale, Delaware[5] |
| Mouth Coordinates: | 38.7761°N -75.5119°W |
| Mouth Elevation: | 36feet |
| Progression: | Gum Branch → Nanticoke River → Chesapeake Bay → Atlantic Ocean |
| River System: | Nanticoke River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | Oakley Road |
Parker Branch is a 3.21miles long 1st order tributary to Gum Branch in Sussex County, Delaware.
Parker Branch rises on the Beaver Dam Branch divide about 2 miles west-southwest of Ellendale, Delaware[3] and then flows southwest to join Gum Branch about 3 miles southwest of Ellendale.[5]
Parker Branch drains of area, receives about 45.4 in/year of precipitation, has a topographic wetness index of 738.49 and is about 11% forested.[2]