The Piedmont Limited was a named passenger train operated by the Southern Railway in the southern United States. For most of its life it was a New York—New Orleans train, operating over the same route as the more famous Crescent Limited. The Southern Railway discontinued the Piedmont Limited in 1967, though reused the name Piedmont a few years later for an Atlanta–Washington service.

The Southern Railway was a class 1 railroad based in the Southern United States between 1894 and 1982, when it merged with the Norfolk and Western Railway (N&W) to form the Norfolk Southern Railway. The railroad was the product of nearly 150 predecessor lines that were combined, reorganized and recombined beginning in the 1830s, formally becoming the Southern Railway in 1894.