State Route 320 (SR 320) is a 9.9-mile-long (15.9 km) north-south state highway in the northeastern part of the U.S. state of Georgia. It is located in rural areas, almost all of it in Franklin County, and a very small segment in Stephens County.

SR 320 begins at an intersection with SR 59 (Commerce Road), just southwest of Carnesville, in Franklin County. The route travels northwest, skirting along the southwestern edge of Carnesville, to an interchange with Interstate 85 (I-85, Ernest Vandiver Highway). After the interchange, the route continues northwest, and curves over Whiten Creek to the north, through generally rural areas of the county before reaching its northern terminus just inside the Stephens County, an intersection with SR 106 in Mize.

SR 320 is not part of the National Highway System, a system of roadways important to the nation's economy, defense, and mobility.

This section is empty. You can help by adding to it. (October 2012)

County	Location	mi	km	Destinations	Notes
Franklin	​	0.0	0.0	SR 59 (Commerce Road) – Commerce, Lavonia	Southern terminus
	​	0.9	1.4	I-85 (Ernest Vandiver Highway / SR 403) – Atlanta, Greenville	I-85 exit 164
Stephens	Mize	9.9	15.9	SR 106 (Mize Road) – Carnesville, Toccoa	Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

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