State Route 13 (SR 13), known as Buford Highway, Falcon Parkway, and Atlanta Highway, is a state highway in Georgia. It begins at West Peachtree Street and Spring Street (U.S. Route 19 (US 19)/SR 9) just to the north of 17th Street in north Midtown Atlanta. The section near downtown Atlanta is a full freeway, from its south end to Sidney Marcus Boulevard. This was the original alignment of Interstate 85 (I-85; Northeast Expressway) through northeast Atlanta. The route ends at Jesse Jewell Parkway (SR 369) in Gainesville. The name changes from Buford Highway to Atlanta Highway at the northeast city limits of Buford. The stretch between the DeKalb/Fulton County line and several miles northeast of I-285 is often regarded as a community (see Buford Highway).

SR 13 once continued northeast past Gainesville, roughly along present SR 365, to the South Carolina state line on US 123.

SR 13 begins at an intersection with US 19 and SR 9, which are aligned onto two one-way streets, Spring Street southbound and West Peachtree Street northbound. The route starts heading west but curves around to the northeast along a section of freeway adjacent to I-85. A half-interchange provides a shortcut for southbound SR 13 traffic to Peachtree Street and from Peachtree to northbound SR 13. The connection provides a savings of 3⁄4 miles (1.2 km) by allowing vehicles to avoid the southernmost section of SR 13.

State Route 13 Connector (SR 13 CONN) is a 1-mile-long (1.6 km) route that connects US 23 and SR 13 to SR 141 in Doraville. The entire route runs along Motors Industrial Way, a four-lane expressway with a grassy median. The route is separated from the inner lanes of I-285 by a Jersey barrier.