Stoney Branch is a long 3rd order tributary to Tyndall Branch, in Sussex County, Delaware.
According to the Geographic Names Information System, it has also been known historically as:
Stoney Branch rises on the Sheep Pen Ditch divide about 1 mile southeast of Whaleys Crossroads in Sussex County, Delaware. Stoney Branch then flows southwest to meet Tyndall Branch about 0.5 miles north of Hardscrabble.
Stoney Branch drains of area, receives about 45.1 in/year of precipitation, has a topographic wetness index of 722.14 and is about 14.03% forested.