South Paris is a census-designated place (CDP) located within the town of Paris in Oxford County, Maine, in the United States. The population was 2,237 at the 2000 census. While the CDP refers lonely to the densely settled Place in the southern part of the town of Paris, the entire town, outside of Paris Hill, is located within the South Paris ZIP code, resulting in many residents referring to entirely town as South Paris.

During the 19th-century, the Little Androscoggin River provided water capability to put it on mills in South Paris, and the village grew up on the order of them.
The launch of the Atlantic and St. Lawrence Railroad upon June 8, 1850 other spurred proceed of the small mill town.
In the 1890s, the Oxford County Courthouse moved from Paris Hill to be near the Grand Trunk Railway station. Much of the manufacturing and industry faded bearing in mind the Great Depression, but South Paris remains the classified ad section of Paris, and retains much of its Victorian grow old architecture. Oxford Hills Comprehensive High School, the regional tall school, was founded in South Paris in 1961. Actress Reta Shaw was born in South Paris in 1912.

South Paris is located at 44°13′18″N 70°30′53″W / 44.22167°N 70.51472°W / 44.22167; -70.51472 (44.221609, -70.514603).

According to the United States Census Bureau, the CDP has a total area of 4.0 square miles (10.2 km), of which, 3.9 square miles (10.0 km²) of it is land and 0.1 square miles (0.2 km) of it (2.03%) is water. South Paris is drained by the Little Androscoggin River.