State Route 515 (SR 515) is a four-lane C-shaped state highway in the northern part of the U.S. state of Georgia. It begins just west of Nelson. It curves to the northeast to Lake Chatuge, where it heads north to the North Carolina state line. The highway was built to give motorists in the north Georgia mountains better access to Atlanta and its outlying suburbs, as opposed to the old SR 5 and U.S. Route 76 (US 76) highways, which this project replaced.