Selma Union Depot, also known as Selma Union Station and Selma–Smithfield, is a train station and museum in Selma, North Carolina, and near the town of Smithfield. Built in 1924, it is currently served by two Amtrak passenger trains, the Palmetto and the Carolinian. It is located at 500 East Railroad Street in the heart of downtown Selma. The Silver Meteor and the Silver Star have their northern split here, but do not stop in Selma.

The Palmetto is a passenger train operated by Amtrak on a 829-mile (1,334 km) route between New York City and Savannah, Georgia, via the Northeast Corridor, Washington, D.C., Richmond, Virginia, Fayetteville, North Carolina, and Charleston, South Carolina. The Palmetto is a shorter version of the Silver Meteor, which continues south to Miami, Florida. From 1996 to 2002 this service was called the Silver Palm. Although currently a day train, the Palmetto is considered a long-distance train by Amtrak and previously provided overnight sleeper service to Florida.