State Route 48 (SR 48) is a short west–east state route located entirely in Chattooga County in the northwestern part of the U.S. state of Georgia. The route travels from Alabama State Route 117 at the Alabama state line northwest of Cloudland to US 27/SR 1 in Summerville.

From its western terminus at the Alabama state line, where Alabama SR 117 crosses the state line into Georgia, SR 48 travels southeast, across Lookout Mountain. The route intersects SR 157 at SR 157's southern terminus in the community of Cloudland. SR 48 then descends from Lookout Mountain into the town of Menlo, where it intersects SR 337. SR 48 continues east to Summerville, where it meets its eastern terminus at US 27/SR 1 in downtown.

While the route is short, SR 48 is a somewhat important route in the area. Between Menlo and Summerville, the route sees an Average Annual Daily Traffic (AADT) over 5,000 vehicles.