State Route 371 (SR 371) is a short two-lane south-to-north state route in unincorporated Forsyth County in north-central Georgia, connecting SR 9 in the south to SR 20 in the north. SR 371 serves as a connecting route for the residential neighborhoods between SR 20 and SR 9 to SR 400, the major north-south commuter route into and out of Atlanta.

SR 371 begins at an intersection with SR 9 southwest of Cumming, Georgia and first travels slightly to the northeast, then bends mostly north through the residential southwestern portion of Forsyth County, before reaching its northern terminus at SR 20 near the community of Ducktown. The area around the southern terminus of the route features Alpharetta mailing addresses, with the majority of the route located in the 30040 ZIP code.

While the short route has little statewide significance, it does serve as an important connector for local traffic in the area, as well as serving as a part of the commuter feeder route to SR 400. SR 371 is also utilized as a major school traffic connector for students of all ages, as both Vickery Creek Elementary School and Vickery Creek Middle School are located on the route itself, and West Forsyth High School is just off the route on Kelly Mill Road. The route is locally known as Post Road.

The Georgia Department of Transportation average annual daily traffic (AADT) numbers for the year 2011 show an average of 14,490 vehicles using the southern portion of the route (between SR 9 and Kelly Mill Road) on a daily basis, with 97% of this traffic made up by personal vehicles.

The route makes its first appearance on Georgia highway maps in 1944, and SR 371 is signed as an extension of SR 141 from where SR 141 left its concurrency with US 19 and SR 9 and ran north to SR 20. From 1944, the route is shown as graded, but not yet surfaced. It was 1957 before the route, still signed as SR 141, is marked as having been finished with a hard surface. In 1972, the route was signed as SR 371.

The entire route is in Forsyth County.