The Toccoa River and Ocoee River are the names in use for a single 93-mile-long (150 km) river that flows northwestward through the southern Appalachian Mountains of the southeastern United States. It is a tributary of the Hiwassee River, which it joins in Polk County, Tennessee, near the town of Benton. Three power generating dams are operated along it.

The Hiwassee River originates from a spring on the north slope of Rocky Mountain in Towns County in the northern area of the State of Georgia. It flows northward into North Carolina before turning westward into Tennessee, flowing into the Tennessee River a few miles west of what is now State Route 58 in Meigs County, Tennessee. The river is about 147 miles (237 km) long.