Railway companies of New Jersey

List of railway companies in the American state of New Jersey.

Class I railways

 * Amtrak (AMTK), passenger on freight lines
 * Chesapeake Southern Railway (CHS), freight
 * Conrail (CR), freight and passenger
 * New York Western Railroad (NYW), freight
 * Pennsylvania Seaboard Railroad (PS), freight

Regional railways

 * New York, Susquehanna & Western Railway (NYSW), freight

Shortline and terminal railways

 * Belvidere & Delaware River Railway (BDRV), freight
 * Black River & Western Railroad (BRW), freight
 * Cape May Seashore Lines (CMSL), freight and passenger
 * Dover & Delaware River Railroad (DD), freight
 * Dover & Rockaway River Railroad (DRRV), freight
 * East Jersey Railroad and Terminal Company (EJR), freight
 * Hainesport Transfer Railroad (HTFR), freight
 * Intermodal Railroad Transfer (IRRT), freight
 * Jersey Marine Rail (JMR), freight
 * Morristown & Erie Railway (ME), freight
 * New Jersey & Northern Railway (NJNR), freight
 * New Jersey Rail Carriers (NJRC), freight
 * New Jersey Seashore Lines (NJSL), freight
 * NJ Transit Rail Operations (NJTR), passenger
 * New York New Jersey Rail (NYNJ), freight and car floats
 * Port Jersey Railroad (PJR), freight
 * Raritan Central Railway (RCRY), freight
 * SMS Rail Lines (SLRS), freight
 * Southern Railroad of New Jersey (SRNJ), freight

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