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

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.