Beaver Branch is a tributary to Blackbird Creek in southern New Castle County, Delaware in the United States.
Beaver Branch rises just east of Pine Tree Corners in southern New Castle County, Delaware and flows southeast to meet Blackbird Creek northeast of Blackbird Landing.
The Beaver Branch watershed is about 13% forested and 63% agricultural with the rest being other land uses. The watershed receives approximately 43.2 in/year of precipitation and has a topographic wetness index of 562.53.