Long Branch is a long 2nd order tributary to Whitethorn Creek in Pittsylvania County, Virginia.
Long Branch rises in a pond in Gretna, Virginia and then flows generally southeast to join Whitethorn Creek about 0.5 miles southeast of Gretna Rolling Mill.
Long Branch drains of area, receives about 45.6 in/year of precipitation, has a wetness index of 410.64, and is about 49% forested.