Walnut Creek is a tributary of the South River in the U.S. state of Georgia. It originates in the city of Hampton in Henry County and flows into South River, which is a branch of the Ocmulgee River.
Walnut Creek is dammed to provide a water source for the city of McDonough in Henry County. The name of the resulting body of water is called Fargason Reservoir.
The crossings over Walnut Creek are listed in descending order from the creek's source to its mouth at the South River. All crossings are located in Henry County.