Railway companies of South Carolina

List of railway companies in the American state of South Carolina.

Class I railways

 * Amtrak (AMTK), passenger on freight lines
 * Chesapeake Southern Railway (CHS), freight
 * Pennsylvania Seaboard Railroad (PS), freight
 * Piedmont & Northern Railway (PN), freight and passenger

Defunct railways
Years shown here refer to the period in which a given company operated in South Carolina; they may have existed elsewhere before or after these years.