Double Fork Branch is a long second-order tributary to Marshyhope Creek in Sussex County, Delaware.
Double Fork Branch rises on the Cart Branch divide about 1-mile west-northwest of Greenwood, Delaware, and then flows generally west-southwest to join Marshyhope Creek about 0.5 miles north of Woodenhawk, Delaware.
Double Fork Branch drains of area, receives about 45.0 in/year of precipitation, and is about 12.2% forested.