List of Maryland railroads

The following railroads operate in the U.S. state of Maryland.

Common freight carriers

 * Canadian Pacific Railway through subsidiary Delaware and Hudson Railway (trackage rights, not used)
 * Canton Railroad (CTN)
 * CSX Transportation (CSXT)
 * Delmarva Central Railroad (DCR)
 * Georges Creek Railway (GCK)
 * Maryland and Delaware Railroad (MDDE)
 * Maryland Midland Railway (MMID)
 * Norfolk Southern Railway (NS)
 * Tradepoint Rail (TPR)
 * Wheeling and Lake Erie Railway (WE)
 * Winchester and Western Railroad (WW)

Passenger carriers

 * Amtrak (AMTK)
 * Baltimore Streetcar Museum
 * Maryland Transit Administration for its MARC operations, the Baltimore Metro Subway, the Baltimore Light RailLink, and the Purple Line (under construction)
 * National Capital Trolley Museum
 * Western Maryland Scenic Railroad
 * Walkersville Southern Railroad
 * Washington Metro

Electric railways

 * Baltimore and Bel Air Electric Railway
 * Baltimore, Halethorpe and Elkridge Railway
 * Baltimore, Sparrow's Point and Chesapeake Railway
 * Blue Ridge Railway
 * Capital Traction Company
 * City and Suburban Railway
 * Cumberland Electric Railway
 * Cumberland and Westernport Electric Railway
 * Frederick Railroad
 * Frederick and Middletown Railroad
 * Hagerstown Railway
 * Hagerstown and Frederick Railway
 * Kensington Railway
 * Loraine Electric Railway
 * Maryland Electric Railways
 * North Beach Railway
 * Potomac and Severn Electric Railway: 1899–1900, to Washington and Annapolis Electric Railway
 * Towson and Cockeysville Electric Railway; 1912–1924, shuttle between Northern Central's Timonium Station and the Towson Courthouse
 * United Railways and Electric Company
 * Washington and Annapolis Electric Railway: 1900–1902, to Washington, Baltimore and Annapolis Electric Railway
 * Washington, Baltimore and Annapolis Electric Railroad (WB&A): 1911–1935, to Baltimore and Annapolis Railroad
 * Washington, Baltimore and Annapolis Electric Railway: 1902–1911, to Washington, Baltimore and Annapolis Electric Railroad
 * Washington, Berwyn and Laurel Electric Railway
 * Washington Railway and Electric Company
 * Washington and Glen Echo Railroad
 * Washington and Great Falls Electric Railway
 * Washington Interurban Railway
 * Washington and Maryland Railway
 * Washington and Rockville Railway
 * Washington, Spa Spring and Gretta Railway
 * Washington, Woodside and Forest Glen Railway and Power Company

Private carriers

 * Eckhart Branch Railroad
 * Georges Creek Railroad
 * Green Ridge Railroad
 * Maryland Mining Company
 * Mount Savage Railroad

Passenger carriers

 * Indian Head Central Railway

Ghost railroads

 * Baltimore and Drum Point Railroad