Railway companies of Tennessee

List of railway companies in the American state of Tennessee.

Class I railways

 * Amtrak (AMTK), passenger on freight lines
 * Burlington Northern & Gulf Railroad (BNG), freight
 * Chesapeake Southern Railway (CHS), freight
 * Kansas City-Santa Fe Railroad (KCSF), freight
 * New York Western Railroad (NYW), freight
 * North Western Pacific Railroad (NWP), freight and passenger
 * Pennsylvania Seaboard Railroad (PS), freight
 * Piedmont & Northern Railway (PN), freight and passenger
 * Union Pacific Railroad (UP), freight

Regional railways

 * West Tennessee Railroad (WTNN)

Shortline and terminal railways

 * Caney Fork & Western Railroad (CFWR), freight
 * Chattooga & Chickamauga Railway (CCKY), freight and passenger
 * East Chattanooga Belt Railway (ECTB), freight
 * East Tennessee Railway (ETRY), freight
 * Grenada Railway (GRYR), freight
 * Heritage Railroad Corporation (HR), freight
 * Knoxville & Holston River Railroad (KXHR), freight
 * KWT Railway (KWT), freight
 * Mississippi Central Railroad (MSCI), freight
 * Mississippi Tennessee Railroad (MTNR), freight
 * Nashville & Eastern Railroad (NERR), freight and passenger
 * Nashville & Western Railroad (NWR), freight and passenger
 * Sequatchie Valley Railroad (SQVR), freight
 * South Central Tennessee Railroad (SCTR), freight
 * Tennessee Railway (TENN), freight
 * Tennessee Southern Railroad (TSRR), freight
 * TennKen Railroad (TKEN), freight
 * Tyner Terminal Railroad (TYNT), freight
 * Union City Terminal Railroad (UCTY), freight
 * Walking Horse & Eastern Railroad (WHOE), freight

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