State Route 9 (SR 9) is an 86.4-mile-long (139.0 km) north–south state highway in the northern part of the U.S. state of Georgia. It travels from Atlanta to Turners Corner, north-northeast of Dahlonega. It is concurrent with U.S. Route 19 (US 19) from along 14th Street, in northwest Atlanta, to Roswell Road at Interstate 285 (I-285), in Sandy Springs. It is also concurrent with US 19 from Dahlonega to its northern terminus at US 129.
SR 9 parallels US 19/SR 400 for much its length. Because of its proximity to US 19/SR 400, it is a viable alternate to the congested "Alpharetta Autobahn." Along its route, the state road travels through the cities of Atlanta, Sandy Springs, Roswell, Alpharetta, Cumming, Dawsonville, and Dahlonega.
SR 9 begins at an intersection of US 19 (14th Street N.W.) and US 41 (Northside Drive) in Atlanta. It runs east–west from its origin to the intersection with West Peachtree Street N.W., and turns north here, shortly after crossing over I-75. SR 9 is signed as Peachtree Street N.W. from just south of I-85, and crosses under I-85 just north of the I-75/I-85 interchange north of Downtown Atlanta. Just south of Piedmont Hospital, SR 9 changes names from Peachtree Street N.W. to Peachtree Road N.W.