List of New York railroads
The following railroads currently or formerly operated in the U.S. state of New York.
Common freight carriers
- Albany Port Railroad
- Arcade and Attica Railroad
- B&H Rail Corporation
- Batten Kill Railroad
- Buffalo and Pittsburgh Railroad
- Buffalo Southern Railroad
- Canadian National Railway
- Canadian Pacific Railway including subsidiary Delaware and Hudson Railway
- Central New York Railroad
- Clarendon and Pittsford Railroad
- Conrail Shared Assets Operations operates Staten Island Railroad
- CSX Transportation
- Depew, Lancaster and Western Railroad
- Falls Road Railroad
- Finger Lakes Railway
- Frontier Rail
- Housatonic Railroad
- Ithaca Central Railroad
- Livonia, Avon and Lakeville Railroad
- Lowville and Beaver River Railroad
- Massena Terminal Railroad
- Middletown and New Jersey Railroad
- Mohawk, Adirondack and Northern Railroad
- New York and Atlantic Railway
- New York and Lake Erie Railroad
- New York New Jersey Rail, LLC
- New York and Ogdensburg Railway
- New York, Susquehanna and Western Railway
- Norfolk Southern Railway
- Ontario Central Railroad
- Ontario Midland Railroad
- Owego and Harford Railway
- Providence and Worcester Railroad
- Rochester and Southern Railroad
- Saratoga and North Creek Railway
- SMS Rail Lines of New York
- Somerset Railroad
- South Buffalo Railway
- Pan Am Railways
- Pan Am Southern
- Vermont Railway
- Wellsboro and Corning Railroad
- Western New York and Pennsylvania Railroad
Private carriers
- Kodak Park Railroad
- Global Container Terminals New York
- South Brooklyn Railway
Passenger carriers
- Amtrak
Commuter rail
- Long Island Rail Road
- Metro-North Railroad
- New Jersey Transit Rail Operations
Rapid transit
- AirTrain JFK
- Buffalo Metro Rail
- New York City Subway
- Port Authority Trans-Hudson
- Staten Island Railway
Heritage railroad
- Adirondack Scenic Railroad
- Arcade and Attica Railroad
- Catskill Mountain Railroad
- Cooperstown and Charlotte Valley Railroad
- Delaware and Ulster Railroad
- Medina Railroad Museum
- New York Museum of Transportation
- Saratoga and North Creek Railroad
- Tioga Central Railroad
- Trolley Museum of New York
- Upper Hudson River Railroad
Defunct railroads
| Name | Mark | System | From | To | Successor | Notes |
| Addison Railroad | RUT | 1867 | 1951 | N/A | - | |
| Addison and Northern Pennsylvania Railway | B&O | 1882 | 1887 | Addison and Pennsylvania Railway | - | |
| Addison and Pennsylvania Railway | B&O | 1887 | 1898 | Addison and Susquehanna Railroad | - | |
| Addison and Susquehanna Railroad | B&O | 1898 | 1954 | Buffalo and Susquehanna Railroad | - | |
| Adirondack Company | D&H | 1863 | 1882 | Adirondack Railway | - | |
| Adirondack Railway | D&H | 1882 | 1902 | Delaware and Hudson Company | - | |
| Adirondack Railway | ADIR | 1976 | 1981 | - | ||
| Adirondac Estate and Railroad Company | D&H | 1860 | 1863 | Adirondack Company | - | |
| Adirondack and St. Lawrence Railroad | 1906 | 1925 | N/A | - | ||
| Albany and Hudson Railway and Power Company | 1899 | 1903 | Albany and Hudson Railroad | Electrified in 1900 | ||
| Albany Northern Railroad | D&H | 1851 | 1856 | Albany, Vermont and Canada Railroad | - | |
| Albany and Schenectady Railroad | NYC | 1847 | 1853 | New York Central Railroad | - | |
| Albany and Susquehanna Railroad | D&H | 1851 | 1945 | Delaware and Hudson Railroad | - | |
| Albany and Vermont Railroad | D&H | 1859 | - | |||
| Albany, Vermont and Canada Railroad | D&H | 1856 | 1859 | Albany and Vermont Railroad | - | |
| Albany and West Stockbridge Railroad | NYC | 1836 | 1870 | Boston and Albany Railroad | - | |
| Allegany Central Railroad | PS&N | 1881 | 1883 | Lackawanna and Pittsburgh Railroad | - | |
| Amsterdam, Chuctanunda and Northern Railroad | NYC | 1879 | - | |||
| Atlantic Avenue Railroad | LIRR | 1872 | 1899 | Nassau Electric Railroad | Main line operated by Long Island Rail Road under a 99-year lease from 1877 | |
| Atlantic and Great Western Railroad | ERIE | 1871 | 1880 | New York, Pennsylvania and Ohio Railroad | - | |
| Atlantic and Great Western Railroad | ERIE | 1859 | 1865 | Atlantic and Great Western Railway | - | |
| Atlantic and Great Western Railway | ERIE | 1865 | 1871 | Atlantic and Great Western Railroad | - | |
| Attica and Allegheny Valley Railroad | 1852 | 1856 | Attica and Arcade Railroad | - | ||
| Attica and Buffalo Railroad | NYC | 1836 | 1850 | Buffalo and Rochester Railroad | - | |
| Attica and Arcade Railroad | 1870 | 1880 | Tonawanda Valley Railroad | - | ||
| Attica and Freedom Railroad | 1891 | 1894 | Buffalo, Attica and Arcade Railroad | - | ||
| Attica and Hornellsville Railroad | ERIE | 1845 | 1851 | Buffalo and New York City Railroad | - | |
| Auburn and Ithaca Railway | LV | 1889 | 1890 | Geneva and Van Ettenville Railway | - | |
| Auburn and Rochester Railroad | NYC | 1836 | 1850 | Rochester and Syracuse Railroad | - | |
| Auburn and Syracuse Railroad | NYC | 1834 | 1850 | Rochester and Syracuse Railroad | - | |
| Avon, Geneseo and Mount Morris Railroad | ERIE | 1860 | 1940 | N/A | - | |
| Baltimore and Ohio Railroad | B&O, BO | B&O | 1932 | 1987 | Chesapeake and Ohio Railway | - |
| Bath and Hammondsport Railroad | BH | 1872 | 1993 | Champagne Railroad | - | |
| Battenkill Railroad | D&H | 1902 | 1903 | Greenwich and Johnsonville Railway | - | |
| Bennington and Rutland Railroad | RUT | 1865 | 1870 | Harlem Extension Railroad | - | |
| Bennington and Rutland Railway | RUT | 1877 | 1901 | Rutland Railroad | - | |
| Black River and Morristown Railroad | NYC | 1870 | 1883 | Utica and Black River Railroad | - | |
| Black River and St. Lawrence Railway | NYC | 1868 | 1883 | Carthage and Adirondack Railway | - | |
| Black River and Utica Railroad | NYC | 1853 | 1860 | Utica and Black River Railroad | - | |
| Blossburg and Corning Railroad | NYC | 1854 | 1873 | Corning, Cowanesque and Antrim Railway | - | |
| Bombay and Moira Railroad | 1898 | 1898 | N/A | - | ||
| Boston and Albany Railroad | B&A, BA | NYC | 1870 | 1961 | New York Central Railroad | - |
| Boston, Hartford and Erie Railroad | NH | 1864 | 1874 | New York and New England Railroad | - | |
| Boston, Hartford and Erie Extension Railroad | NH | 1863 | 1864 | Boston, Hartford and Erie Railroad | - | |
| Boston, Hartford and Erie Ferry Extension Railroad | NH | 1864 | 1864 | Boston, Hartford and Erie Railroad | - | |
| Boston, Hoosac Tunnel and Western Railway | B&M | 1877 | 1892 | Fitchburg Railroad | - | |
| Boston and Maine Corporation | BM | B&M | 1964 | Still exists as a lessor of Pan Am Railways operating subsidiary Springfield Terminal Railway | ||
| Boston and Maine Railroad | B&M, BM | B&M | 1900 | 1964 | Boston and Maine Corporation | - |
| Bradford, Eldred and Cuba Railroad | 1881 | 1893 | N/A | - | ||
| Bradford, Richburg and Cuba Railroad | 1881 | 1893 | N/A | - | ||
| Brighton and Bensonhurst Railroad | 1892 | N/A | Never operated | |||
| Brooklyn, Bath and Coney Island Railroad | 1862 | 1885 | Brooklyn, Bath and West End Railroad | - | ||
| Brooklyn, Bath and West End Railroad | 1885 | 1898 | Atlantic Avenue Railroad | Electrified in 1893 | ||
| Brooklyn and Brighton Beach Railroad | 1887 | 1899 | Sea View Railroad | - | ||
| Brooklyn Central and Jamaica Railroad | LIRR | 1860 | 1865 | Brooklyn and Jamaica Railway | - | |
| Brooklyn Eastern District Terminal | BEDT | 1906 | 1983 | New York Cross Harbor Railroad Terminal Corporation | - | |
| Brooklyn, Flatbush and Coney Island Railway | 1877 | 1887 | Brooklyn and Brighton Beach Railroad | - | ||
| Brooklyn and Jamaica Railroad | LIRR | 1832 | 1860 | Brooklyn Central and Jamaica Railroad | - | |
| Brooklyn and Jamaica Railway | LIRR | 1866 | 1872 | Atlantic Avenue Railroad | - | |
| Brooklyn and Montauk Railroad | LI | 1879 | 1889 | Long Island Rail Road | - | |
| Brooklyn and Rockaway Beach Railroad | 1863 | 1906 | Canarsie Railroad | - | ||
| Buffalo and Allegheny Valley Railroad | PRR | 1853 | 1865 | Buffalo and Washington Railway | - | |
| Buffalo, Attica and Arcade Railroad | 1894 | 1917 | Arcade and Attica Railroad | - | ||
| Buffalo and Black Rock Railroad | NYC | 1833 | 1834 | Buffalo and Niagara Falls Railroad | - | |
| Buffalo, Bradford and Pittsburgh Railroad | ERIE | 1859 | 1941 | Erie Railroad | - | |
| Buffalo Branch of the Erie Railway | ERIE | 1861 | 1862 | Erie Railway | - | |
| Buffalo, Chautauqua Lake and Pittsburgh Railway | PRR | 1879 | 1880 | Pittsburgh, Titusville and Buffalo Railway | - | |
| Buffalo, Cleveland and Chicago Railway | NKP | 1881 | 1881 | New York, Chicago and St. Louis Railway | - | |
| Buffalo and Cohocton Valley Railway | ERIE | 1850 | 1852 | Buffalo, Corning and New York Railroad | - | |
| Buffalo, Corning and New York Railroad | ERIE | 1852 | 1857 | Buffalo, New York and Erie Railroad | - | |
| Buffalo, Corry and Pittsburgh Railroad | PRR | 1867 | 1872 | Dunkirk, Chautauqua Lake and Pittsburgh Railroad | - | |
| Buffalo Creek Railroad | BCK | ERIE/ LV | 1869 | 1983 | Consolidated Rail Corporation | - |
| Buffalo Creek Transfer Railroad | 1881 | 1914 | N/A | - | ||
| Buffalo and Erie Railroad | NYC | 1867 | 1869 | Lake Shore and Michigan Southern Railway | - | |
| Buffalo Erie Basin Railroad | NYC | 1876 | 1913 | New York Central and Hudson River Railroad | - | |
| Buffalo Extension of the Atlantic and Great Western Railway | ERIE | 1864 | 1865 | Atlantic and Great Western Railway | - | |
| Buffalo and Geneva Railway | LV | 1889 | 1890 | Lehigh Valley Railway | - | |
| Buffalo and Jamestown Railroad | ERIE | 1872 | 1877 | Buffalo and South Western Railroad | - | |
| Buffalo and Lockport Railroad | NYC | 1852 | 1853 | New York Central Railroad | - | |
| Buffalo and New York City Railroad | ERIE | 1851 | 1861 | Buffalo Branch of the Erie Railway, Buffalo, New York and Erie Railroad | - | |
| Buffalo, New York and Erie Railroad | ERIE | 1857 | 1896 | Erie Railroad | - | |
| Buffalo, New York and Philadelphia Railroad | PRR | 1883 | 1887 | Western New York and Pennsylvania Railway of New York | - | |
| Buffalo, New York and Philadelphia Railway | PRR | 1871 | 1883 | Buffalo, New York and Philadelphia Railroad | - | |
| Buffalo and Niagara Falls Railroad | NYC | 1834 | 1869 | New York Central Railroad | - | |
| Buffalo and Oil Creek Cross Cut Railroad | PRR | 1865 | 1867 | Buffalo, Corry and Pittsburgh Railroad | - | |
| Buffalo and Pittsburgh Railroad | ERIE | 1852 | 1859 | Buffalo, Bradford and Pittsburgh Railroad | - | |
| Buffalo, Pittsburgh and Western Railroad | PRR | 1881 | 1883 | Buffalo, New York and Philadelphia Railroad | - | |
| Buffalo, Pittsburgh and Western Railway | PRR | 1880 | 1881 | Buffalo, Pittsburgh and Western Railroad | - | |
| Buffalo and Rochester Railroad | NYC | 1850 | 1853 | New York Central Railroad | - | |
| Buffalo, Rochester and Pittsburgh Railroad | B&O | 1885 | 1887 | Buffalo, Rochester and Pittsburgh Railway | - | |
| Buffalo, Rochester and Pittsburgh Railroad | B&O | 1881 | 1881 | Rochester and Pittsburgh Railroad | - | |
| Buffalo, Rochester and Pittsburgh Railway | BR&P | B&O | 1887 | Still exists as a nonoperating subsidiary of CSX Transportation, leased to the Buffalo and Pittsburgh Railroad | ||
| Buffalo and South Western Railroad | ERIE | 1877 | 1895 | Erie Railroad | - | |
| Buffalo and State Line Railroad | NYC | 1848 | 1867 | Buffalo and Erie Railroad | - | |
| Buffalo and Susquehanna Railroad | B&O | 1954 | 1954 | Baltimore and Ohio Railroad | - | |
| Buffalo and Susquehanna Railroad | B&S | B&O | 1910 | 1932 | Baltimore and Ohio Railroad | - |
| Buffalo and Susquehanna Railroad | B&O | 1896 | 1907 | Buffalo and Susquehanna Railway | - | |
| Buffalo and Susquehanna Railway | 1902 | 1915 | Wellsville and Buffalo Railroad | - | ||
| Buffalo, Thousand Islands & Portland Railroad | NYC | 1850 | 1907 | Rome, Watertown and Ogdensburg Railroad | - | |
| Buffalo and Washington Railroad | PRR | 1865 | 1865 | Buffalo and Washington Railway | - | |
| Buffalo and Washington Railway | PRR | 1865 | 1871 | Buffalo, New York and Philadelphia Railway | - | |
| Bush Terminal Railroad | 1903 | - | ||||
| Cairo Railroad | 1884 | 1918 | N/A | - | ||
| Campbell Hall Connecting Railroad | LNE | 1889 | 1961 | N/A | - | |
| Canada Southern Railway | CASO | NYC | 1883 | 1904 | Michigan Central Railroad | - |
| Canajoharie and Catskill Railroad | 1830 | 1842 | Catskill Mountain Railroad | - | ||
| Canal Railroad | LV | 1878 | 1905 | Lehigh Valley Railway | - | |
| Canandaigua and Corning Railroad | PRR | 1845 | 1852 | Canandaigua and Elmira Railroad | - | |
| Canandaigua and Elmira Railroad | PRR | 1852 | 1857 | Elmira, Canandaigua and Niagara Falls Railroad | - | |
| Canandaigua Lake Railroad | PRR | 1887 | 1888 | Elmira and Lake Ontario Railroad | - | |
| Canandaigua and Niagara Falls Railroad | NYC | 1851 | 1857 | Niagara Bridge and Canandaigua Railroad | - | |
| Canarsie Railroad | 1906 | 1912 | New York Consolidated Railroad | Electrified in 1906 | ||
| Canastota Northern Railroad | LV | 1886 | 1905 | Elmira, Cortland and Northern Railroad | - | |
| Carthage and Adirondack Railway | NYC | 1883 | 1913 | New York Central and Hudson River Railroad | - | |
| Carthage and Copenhagen Railroad | 1906 | 1917 | Deer River Railroad | - | ||
| Carthage, Watertown and Sackets Harbor Railroad | NYC | 1869 | 1913 | New York Central and Hudson River Railroad | - | |
| Castleton and West Stockbridge Railroad | NYC | 1834 | 1836 | Albany and West Stockbridge Railroad | - | |
| Catskill Mountain Railroad | 1917 | 1918 | N/A | - | ||
| Catskill Mountain Railroad | 1880 | 1885 | Catskill Mountain Railway | - | ||
| Catskill Mountain Railway | 1885 | 1916 | Catskill Mountain Railroad | - | ||
| Catskill and Tannersville Railway | 1892 | 1916 | Catskill Mountain Railroad | - | ||
| Cayuga Railway | LV | 1874 | 1877 | Cayuga Southern Railroad | - | |
| Cayuga Lake Railroad | LV | 1867 | 1874 | Cayuga Railway | - | |
| Cayuga Southern Railroad | LV | 1877 | 1879 | Geneva, Ithaca and Sayre Railroad | - | |
| Cayuga and Susquehanna Railroad | DL&W | 1843 | 1946 | Delaware, Lackawanna and Western Railroad | - | |
| Cazenovia and Canastota Railroad | LV | 1868 | 1873 | Cazenovia and Canastota Railway | - | |
| Cazenovia and Canastota Railway | LV | 1873 | 1873 | Cazenovia, Canastota and De Ruyter Railroad | - | |
| Cazenovia, Canastota and De Ruyter Railroad | LV | 1873 | 1876 | Cazenovia, Canastota and De Ruyter Railway | - | |
| Cazenovia, Canastota and De Ruyter Railway | LV | 1876 | 1884 | Elmira, Cortland and Northern Railroad | - | |
| Cazenovia and De Ruyter Railroad | LV | 1872 | 1873 | Cazenovia, Canastota and De Ruyter Railroad | - | |
| Central Railroad Extension Company | LI | 1873 | 1882 | Long Island Rail Road | - | |
| Central Railroad of Long Island | LI | 1871 | 1879 | Long Island Rail Road | - | |
| Central New England Railway | CNE | NH | 1899 | 1927 | New York, New Haven and Hartford Railroad | - |
| Central New England and Western Railroad | NH | 1889 | 1892 | Philadelphia, Reading and New England Railroad | - | |
| Central New York and Northern Railroad | PS&N | 1899 | 1899 | Central New York and Western Railroad | - | |
| Central New York Southern Railroad | 1914 | 1923 | N/A | - | ||
| Central New York and Western Railroad | PS&N | 1892 | 1899 | Pittsburg, Shawmut and Northern Railroad | - | |
| Central Valley Railroad | 1870 | 1875 | N/A | - | ||
| Central Vermont Railroad | CN | 1873 | 1899 | Central Vermont Railway | - | |
| Central Vermont Railway | CV | CN | 1898 | 1962 | N/A | - |
| Champagne Railroad | CGNE | 1993 | 1996 | Livonia, Avon and Lakeville Railroad | - | |
| Champlain and St. Lawrence Railroad | CN | 1851 | 1960 | Canadian National Railway | - | |
| Chateaugay Railroad | D&H | 1879 | 1903 | Chateaugay and Lake Placid Railway | - | |
| Chateaugay Railway | D&H | 1887 | 1903 | Chateaugay and Lake Placid Railway | - | |
| Chateaugay and Lake Placid Railway | D&H | 1903 | 1957 | Delaware and Hudson Railroad | - | |
| Chatham and Lebanon Valley Railroad | RUT | 1899 | 1901 | Rutland Railroad | - | |
| Chautauqua Lake Railway | 1886 | 1894 | Jamestown and Lake Erie Railway | - | ||
| Chemung Railroad | PRR | 1845 | 1886 | Elmira and Lake Ontario Railroad | - | |
| Cherry Valley and Mohawk River Railroad | D&H | 1864 | 1869 | Cherry Valley, Sharon and Albany Railroad | - | |
| Cherry Valley, Sharon and Albany Railroad | D&H | 1869 | 1908 | Delaware and Hudson Company | - | |
| Cherry Valley and Sprakers Railroad | D&H | 1860 | 1864 | Cherry Valley and Mohawk River Railroad | - | |
| Chesapeake and Ohio Railway | C&O, CO | C&O | 1947 | 1987 | CSX Transportation | - |
| Clayton and Theresa Railroad | NYC | 1871 | 1886 | Utica and Black River Railroad | - | |
| Clove Branch Railroad | 1868 | 1898 | N/A | - | ||
| Conesus Lake Railroad | ERIE | 1882 | 1932 | Erie Railroad | - | |
| Coney Island and East River Railway | 1876 | 1877 | Brooklyn, Flatbush and Coney Island Railway | - | ||
| Conhocton Valley Railroad | 2001 | 2001 | B&H Rail Corporation | - | ||
| Connecting Terminal Railroad | PRR | 1881 | 1931 | Western New York and Pennsylvania Railway | - | |
| Consolidated Rail Corporation | CR | 1976 | 1999 | CSX Transportation, Norfolk Southern Railway | - | |
| Cooperstown and Charlotte Valley Railroad | D&H | 1888 | 1957 | Delaware and Hudson Railroad | - | |
| Cooperstown and Charlotte Valley Railway | CACV | 1971 | 1989 | N/A | - | |
| Cooperstown and Susquehanna Valley Railroad | D&H | 1865 | 1957 | Delaware and Hudson Railroad | - | |
| Corning and Blossburg Railroad | NYC | 1851 | 1852 | Blossburg and Corning Railroad | - | |
| Corning, Cowanesque and Antrim Railway | NYC | 1873 | 1892 | Fall Brook Railway | - | |
| Cornwall Bridge Company | NYC | 1897 | 1917 | New York Central Railroad | - | |
| Cranberry Lake Railroad | 1902 | 1914 | N/A | - | ||
| Danbury Terminal Railroad | DTRR | 1993 | 1996 | Housatonic Railroad | - | |
| Dansville and Mount Morris Railroad | D&MM, DMM | 1891 | Still exists as a nonoperating subsidiary of the Rochester and Southern Railroad | |||
| Deer River Railroad | 1917 | 1918 | N/A | - | ||
| Degnon Terminal Railroad | LIRR | 1913 | 1928 | Long Island Rail Road | - | |
| Delaware and Eastern Railroad | 1904 | 1911 | Delaware and Northern Railroad | - | ||
| Delaware and Eastern Railway | 1907 | 1911 | Delaware and Northern Railroad | - | ||
| Delaware and Hudson Company | D&H | 1899 | 1930 | Delaware and Hudson Railroad | - | |
| Delaware and Hudson Railroad | D&H | D&H | 1930 | 1968 | Delaware and Hudson Railway | - |
| Delaware and Hudson Canal Company | D&H | 1867 | 1899 | Delaware and Hudson Company | - | |
| Delaware, Lackawanna and Western Railroad | DL&W, DLW | DL&W | 1870 | 1960 | Erie–Lackawanna Railroad | - |
| Delaware and Northern Railroad | D&N | 1911 | 1928 | Delaware and Northern Railway | - | |
| Delaware and Northern Railway | D&N | 1928 | 1942 | N/A | - | |
| Delaware and Otsego Railroad | NYC | 1887 | 1901 | Ulster and Delaware Railroad | - | |
| Depew and Tonawanda Railroad | LV | 1895 | 1903 | Lehigh Valley Railway | - | |
| Dexter and Northern Railroad | 1908 | 1956 | N/A | - | ||
| Direct Railway between Syracuse and Rochester | NYC | 1848 | 1850 | Rochester and Syracuse Railroad | - | |
| Dolgeville and Salisbury Railway | NYC | 1907 | 1917 | New York Central Railroad | - | |
| Dunkirk, Allegheny Valley and Pittsburgh Railroad | NYC | 1873 | 1914 | New York Central Railroad | - | |
| Dunkirk, Chautauqua Lake and Pittsburgh Railroad | PRR | 1879 | 1879 | Buffalo, Chautauqua Lake and Pittsburgh Railway | - | |
| Dunkirk and State Line Railroad | NYC | 1850 | 1851 | Buffalo and State Line Railroad | - | |
| Dunkirk, Warren and Pittsburgh Railroad | NYC | 1867 | 1870 | Dunkirk, Warren and Pittsburgh Railway | - | |
| Dunkirk, Warren and Pittsburgh Railway | NYC | 1870 | 1873 | Dunkirk, Allegheny Valley and Pittsburgh Railroad | - | |
| Dutchess and Columbia Railroad | NH | 1866 | 1872 | New York, Boston and Northern Railway | - | |
| Dutchess County Railroad | NH | 1890 | 1907 | Central New England Railway | - | |
| East River Terminal Railroad | 1907 | 1916 | Brooklyn Eastern District Terminal | - | ||
| Ellenville and Kingston Railroad | NH | 1901 | 1957 | N/A | - | |
| Elmira, Canandaigua and Niagara Falls Railroad | PRR | 1857 | 1858 | Elmira, Jefferson and Canandaigua Railroad | - | |
| Elmira, Cortland and Northern Railroad | LV | 1884 | 1905 | Lehigh Valley Railway | - | |
| Elmira, Jefferson and Canandaigua Railroad | PRR | 1859 | 1886 | Elmira and Lake Ontario Railroad | - | |
| Elmira and Lake Ontario Railroad | PRR | 1886 | 1956 | Northern Central Railway | - | |
| Elmira State Line Railroad | ERIE | 1872 | 1942 | N/A | - | |
| Elmira and Williamsport Railroad | PRR | 1860 | 1969 | Penndel Company | - | |
| Erie Railroad | ERIE | ERIE | 1895 | 1960 | Erie–Lackawanna Railroad | - |
| Erie Railway | ERIE | 1861 | 1878 | New York, Lake Erie and Western Railroad | - | |
| Erie and Black Rock Railroad | ERIE | 1882 | 1932 | Erie Railroad | - | |
| Erie and Central New York Railroad | DL&W | 1902 | 1945 | Delaware, Lackawanna and Western Railroad | - | |
| Erie and Central New York Railway | DL&W | 1863 | 1902 | Erie and Central New York Railroad | - | |
| Erie and Genesee Valley Railroad | ERIE | 1868 | 1891 | Dansville and Mount Morris Railroad | - | |
| Erie International Railway | ERIE | 1872 | 1895 | Erie Railroad | - | |
| Erie and Jersey Railroad | ERIE | 1905 | 1915 | Erie Railroad | - | |
| Erie–Lackawanna Railroad | EL | 1960 | 1968 | Erie Lackawanna Railway | - | |
| Erie Lackawanna Railway | EL | 1968 | 1976 | Consolidated Rail Corporation | - | |
| Erie and New York City Railroad | ERIE | 1851 | 1860 | Atlantic and Great Western Railroad | - | |
| Erie Terminals Railroad | ERIE | 1907 | 1915 | Erie Railroad | - | |
| Fall Brook Railway | NYC | 1892 | 1909 | Geneva, Corning and Southern Railroad | - | |
| Far Rockaway Branch Railroad | LI | 1868 | 1872 | South Side Railroad of Long Island | - | |
| Fitchburg Railroad | B&M | 1887 | 1919 | Boston and Maine Railroad | - | |
| Flatbush and Coney Island Park and Concourse Railroad | 1876 | 1877 | Brooklyn, Flatbush and Coney Island Railway | - | ||
| Flushing Railroad | LI | 1852 | 1859 | New York and Flushing Railroad | - | |
| Flushing and North Side Railroad | LI | 1868 | 1881 | Long Island City and Flushing Railroad | - | |
| Flushing and Woodside Railroad | LI | 1864 | 1871 | Flushing and North Side Railroad | - | |
| Fonda, Johnstown and Gloversville Railroad | FJG | 1867 | 1984 | N/A | - | |
| Friendship Railroad | PS&N | 1880 | 1881 | Allegany Central Railroad | - | |
| Fulton Chain Railroad | NYC | 1896 | 1902 | Fulton Chain Railway | - | |
| Fulton Chain Railway | NYC | 1902 | 1937 | New York Central Railroad | - | |
| Fulton and Oswego Railroad | NYC | 1885 | 1886 | Syracuse, Phoenix and Oswego Railway | - | |
| Garnerville Railroad | ERIE | 1875 | N/A | - | ||
| Genesee Falls Railway | NYC | 1886 | - | |||
| Genesee River Railroad | ERIE | 1905 | 1915 | Erie Railroad | - | |
| Genesee Valley Canal Railroad | PRR | 1880 | 1912 | Pennsylvania and Rochester Railroad | - | |
| Genesee Valley Terminal Railroad | PRR | 1882 | 1912 | Pennsylvania and Rochester Railroad | - | |
| Genesee and Wyoming Railroad | GNW, GNWR | 1899 | Still exists as a nonoperating subsidiary of the Rochester and Southern Railroad | |||
| Genesee and Wyoming Valley Railway | 1891 | 1899 | Genesee and Wyoming Railroad | - | ||
| Geneseo Valley Railroad | ERIE | 1857 | 1860 | Avon, Geneseo and Mount Morris Railroad | - | |
| Geneva, Corning and Southern Railroad | NYC | 1909 | 1914 | New York Central Railroad | - | |
| Geneva, Corning and Southern Railway | NYC | 1875 | 1909 | Geneva, Corning and Southern Railroad | - | |
| Geneva and Hornellsville Railway | PRR | 1875 | 1876 | Geneva, Hornellsville and Pine Creek Railway | - | |
| Geneva, Hornellsville and Pine Creek Railway | PRR | 1876 | 1879 | Lake Ontario Southern Railway | - | |
| Geneva and Ithaca Railroad | LV | 1870 | 1874 | Geneva, Ithaca and Athens Railroad | - | |
| Geneva, Ithaca and Athens Railroad | LV | 1874 | 1876 | Geneva, Ithaca and Sayre Railroad | - | |
| Geneva, Ithaca and Sayre Railroad | LV | 1876 | 1889 | Geneva and Sayre Railroad | - | |
| Geneva and Lyons Railroad | NYC | 1877 | 1890 | New York Central and Hudson River Railroad | - | |
| Geneva and Sayre Railroad | LV | 1889 | 1890 | Geneva and Van Ettenville Railway | - | |
| Geneva and Southwestern Railway | PRR | 1871 | 1875 | Geneva and Hornellsville Railway | - | |
| Geneva Southwestern and Hornellsville Railway | PRR | 1872 | 1875 | Geneva and Hornellsville Railway | - | |
| Geneva and Van Ettenville Railway | LV | 1889 | 1890 | Lehigh Valley Railway | - | |
| Glen Cove Branch Rail Road | LI | 1865 | Long Island Rail Road | - | ||
| Glendale and East River Railroad | LI | 1874 | 1928 | Long Island Rail Road | - | |
| Glenfield and Western Railroad | 1901 | N/A | - | |||
| Glens Falls Railroad | D&H | 1867 | 1906 | Rensselaer and Saratoga Railroad | - | |
| Gloversville and Broadalbin Railroad | 1895 | 1931 | Fonda, Johnstown and Gloversville Railroad | - | ||
| Gloversville and Northville Railroad | 1872 | 1881 | Fonda, Johnstown and Gloversville Railroad | - | ||
| Goshen and Deckertown Railway | ERIE | 1868 | 1954 | Erie Railroad | - | |
| Gouverneur and Oswegatchie Railroad | NYC | 1892 | 1913 | New York Central and Hudson River Railroad | - | |
| Grand Trunk Railway | GT | CN | 1864 | 1923 | Canadian National Railway | - |
| Grasse River Railroad | GR | 1915 | 1959 | N/A | - | |
| Great Neck and Port Washington Railroad | LI | 1896 | 1902 | Long Island Rail Road | - | |
| Great Valley and Bradford Railroad | B&O | 1881 | 1881 | Rochester and Pittsburgh Railroad | - | |
| Great Western Railway | CN | 1855 | 1882 | Grand Trunk Railway | - | |
| Greigsville and Pearl Creek Railroad | 1897 | 1899 | N/A | - | ||
| Greene Railroad | DL&W | 1869 | 1946 | Delaware, Lackawanna and Western Railroad | - | |
| Greenwich and Johnsonville Railroad | D&H | 1874 | 1879 | Greenwich and Johnsonville Railway | - | |
| Greenwich and Johnsonville Railway | G&J, GJ | D&H | 1879 | 1982 | Batten Kill Railroad | - |
| Greenwood and Coney Island Railroad | 1872 | 1874 | Prospect Park and Coney Island Railroad | - | ||
| Hackensack and New York Extension Railroad | ERIE | 1869 | 1873 | New Jersey and New York Railway | - | |
| Halite and Northern Railroad | 1910 | 1933 | N/A | - | ||
| Hancock and East Branch Railroad | 1906 | 1907 | Delaware and Eastern Railway | - | ||
| Hancock and Pennsylvania Railroad | NH | 1889 | 1889 | Ontario, Carbondale and Scranton Railway | - | |
| Harlem Extension Railroad | RUT | 1870 | 1873 | New York, Boston and Montreal Railway | - | |
| Harlem Extension Railroad South Coal Transportation Company | RUT | 1877 | 1880 | N/A | Leased the New York, Boston and Montreal Railway | |
| Harlem River and Port Chester Railroad | NH | 1866 | 1927 | New York, New Haven and Hartford Railroad | - | |
| Hartford and Connecticut Western Railroad | NH | 1882 | 1947 | New York, New Haven and Hartford Railroad | - | |
| Hayts Corners, Ovid and Willard Railroad | LV | 1882 | 1959 | N/A | - | |
| Hempstead and Rockaway Railroad | LIRR | 1869 | 1871 | New York and Hempstead Railroad | - | |
| Herkimer, Newport and Poland Railway | NYC | 1891 | 1892 | Mohawk and Malone Railway | - | |
| Herkimer, Newport and Poland Extension Railway | NYC | 1891 | 1892 | Mohawk and Malone Railway | - | |
| Herkimer, Newport and Poland Narrow Gauge Railway | NYC | 1880 | 1891 | Herkimer, Newport and Poland Railway | - | |
| Hicksville and Cold Spring Branch Railroad | LI | 1853 | 1870 | Long Island Rail Road | - | |
| Hobart Branch Railroad | NYC | 1884 | 1901 | Ulster and Delaware Railroad | - | |
| Hoosac Tunnel and Saratoga Railway | B&M | 1881 | 1886 | Troy, Saratoga and Northern Railroad | - | |
| Hudson and Berkshire Railroad | NYC | 1832 | 1854 | Hudson and Boston Railroad | - | |
| Hudson and Boston Railroad | NYC | 1855 | 1870 | Boston and Albany Railroad | - | |
| Hudson Connecting Railroad | NH | 1887 | 1889 | Central New England and Western Railroad | - | |
| Hudson Light and Power and Railroad Company | 1899 | 1899 | Albany and Hudson Railway and Power Company | - | ||
| Hudson River Railroad | NYC | 1846 | 1869 | New York Central and Hudson River Railroad | - | |
| Hudson River Bridge Company at Albany | NYC | 1856 | 1976 | Consolidated Rail Corporation | - | |
| Hudson River Connecting Railroad | NYC | 1913 | 1964 | New York Central Railroad | - | |
| Hudson River West Shore Railroad | NYC | 1867 | 1868 | West Shore Hudson River Railroad | - | |
| Hunter's Point and South Side Railroad | LI | 1870 | 1872 | South Side Railroad of Long Island | - | |
| International Bridge Company | CN | 1857 | 1956 | Canadian National Railway | - | |
| Island Railroad | 1883 | - | ||||
| Ithaca and Athens Railroad | LV | 1870 | 1874 | Geneva, Ithaca and Athens Railroad | - | |
| Ithaca, Auburn and Western Railroad | LV | 1876 | 1890 | Auburn and Ithaca Railway | - | |
| Ithaca and Cortland Railroad | LV | 1869 | 1871 | Utica, Ithaca and Elmira Railroad | - | |
| Ithaca and Owego Railroad | DL&W | 1828 | 1843 | Cayuga and Susquehanna Railroad | - | |
| Ithaca and Tonawanda Railroad | LV | 1865 | 1870 | Ithaca and Athens Railroad | - | |
| Jamaica and South Shore Railroad | LI | 1903 | 1912 | Long Island Rail Road | - | |
| Jamestown and Chautauqua Railway | 1898 | 1913 | Jamestown, Westfield and Northwestern Railroad | - | ||
| Jamestown, Chautauqua and Lake Erie Railway | 1900 | 1913 | Jamestown, Westfield and Northwestern Railroad | - | ||
| Jamestown and Lake Erie Railway | 1894 | 1898 | Jamestown and Chautauqua Railway | - | ||
| Jamestown, Westfield and Northwestern Railroad | 1913 | 1950 | N/A | Electric from 1914 to 1947 | ||
| Jay Street Connecting Railroad | 1909 | - | ||||
| Jay Street Extension Railroad | 1916 | 1916 | Jay Street Connecting Railroad | - | ||
| Jersey City and Albany Railroad | NYC | 1873 | 1877 | Jersey City and Albany Railway | - | |
| Jersey City and Albany Railway | NYC | 1878 | 1881 | North River Railroad | - | |
| Junction Railroad | NYC | 1870 | 1879 | New York Central and Hudson River Railroad | - | |
| Kaaterskill Railroad | NYC | 1882 | 1901 | Ulster and Delaware Railroad | - | |
| Kanona and Prattsburg Railroad | 1886 | 1893 | Kanona and Prattsburg Railway | - | ||
| Kanona and Prattsburg Railway | 1897 | 1917 | Prattsburg Railway | - | ||
| Keeseville, Ausable Chasm and Lake Champlain Railroad | 1889 | 1924 | N/A | Electric from 1905 to 1911 | ||
| Kinderhook and Hudson Railway | 1889 | 1899 | Hudson Light and Power and Railroad Company | - | ||
| Kings County Central Railroad | 1876 | 1878 | N/A | - | ||
| Lackawanna and Pittsburgh Railroad | PS&N | 1882 | 1889 | Lackawanna and Southwestern Railroad | - | |
| Lackawanna and Southwestern Railroad | PS&N | 1889 | 1892 | Central New York and Western Railroad | - | |
| Lackawanna and Susquehanna Railroad | D&H | 1867 | - | |||
| Lake Champlain and Moriah Railroad | 1867 | 1968 | N/A | - | ||
| Lake Ontario Railroad | NYC | 1874 | 1875 | Rome, Watertown and Ogdensburg Railroad | - | |
| Lake Ontario and Hudson River Railroad | D&H | 1857 | 1860 | Adirondac Estate and Railroad Company | - | |
| Lake Ontario Shore Railroad | NYC | 1868 | 1874 | Lake Ontario Railroad | - | |
| Lake Ontario Southern Railway | PRR | 1879 | 1882 | Sodus Bay and Southern Railroad | - | |
| Lake Shore and Michigan Southern Railway | NYC | 1869 | 1914 | New York Central Railroad | - | |
| Lebanon Springs Railroad | RUT | 1893 | 1899 | Chatham and Lebanon Valley Railroad | - | |
| Lebanon Springs Railroad | RUT | 1852 | 1870 | Harlem Extension Railroad | - | |
| Lehigh – Buffalo Terminal Railway | LV | 1915 | - | |||
| Lehigh and Hudson River Railway | L&HR, LHR | L&HR | 1882 | 1976 | Consolidated Rail Corporation | - |
| Lehigh and Lake Erie Railroad | LV | 1896 | 1907 | Lehigh Valley Railway | - | |
| Lehigh and New England Railroad | LNE | LNE | 1895 | 1961 | N/A | - |
| Lehigh and New York Railroad | LV | 1895 | 1949 | Lehigh Valley Railroad | - | |
| Lehigh Valley Railroad | LV | LV | 1888 | 1976 | Consolidated Rail Corporation | - |
| Lehigh Valley Railway | LV | 1882 | 1949 | Lehigh Valley Railroad | - | |
| Lewiston Railroad | NYC | 1836 | 1855 | New York Central Railroad | - | |
| Lincoln Park and Charlotte Railroad | B&O | 1888 | 1899 | Buffalo, Rochester and Pittsburgh Railway | - | |
| Little Falls and Dolgeville Railroad | NYC | 1891 | 1913 | New York Central and Hudson River Railroad | - | |
| Lockport and Buffalo Railway | ERIE | 1871 | 1895 | Erie Railroad | - | |
| Lockport and Niagara Falls Railroad | NYC | 1834 | 1850 | Rochester, Lockport and Niagara Falls Railroad | - | |
| Long Island Rail Road | LI | LI | 1834 | 1997 | New York and Atlantic Railway | Still exists as a passenger railroad |
| Long Island Railroad North Shore Branch | LI | 1892 | 1921 | Long Island Rail Road | - | |
| Long Island City and Flushing Railroad | LI | 1881 | 1889 | Long Island Rail Road | - | |
| Long Island City and Manhattan Beach Railroad | LI | 1883 | 1885 | New York, Brooklyn and Manhattan Beach Railway | - | |
| Mahopac Falls Railroad | NYC | 1884 | 1913 | New York and Putnam Railroad | - | |
| Malone and St. Lawrence Railway | NYC | 1891 | 1895 | St. Lawrence and Adirondack Railway | - | |
| Marcellus Electric Railroad | 1887 | 1905 | Marcellus and Otisco Lake Railway | - | ||
| Marcellus and Otisco Company | 1919 | 1959 | N/A | - | ||
| Marcellus and Otisco Lake Railway | 1905 | 1920 | Marcellus and Otisco Company | - | ||
| Marion Railway | PRR | 1917 | 1931 | Elmira and Lake Ontario Railroad | - | |
| Massena Springs and Fort Covington Railroad | CN | 1884 | 1888 | United States and Canada Railroad | - | |
| Mayville Extension Railroad | 1881 | 1887 | Chautauqua Lake Railway | - | ||
| Mechanicville and Fort Edward Railroad | B&M | 1880 | - | |||
| Michigan Central Railroad | MC | NYC | 1904 | 1930 | New York Central Railroad | - |
| Middleburgh and Schoharie Railroad | 1867 | 1936 | N/A | - | ||
| Middlesex Valley Railroad | LV | 1892 | 1903 | Lehigh Valley Railway | - | |
| Middletown and Crawford Railroad | ERIE | 1868 | 1932 | Erie Railroad | - | |
| Middletown and New Jersey Railway | MNJ | 1947 | 2009 | Middletown and New Jersey Railroad | - | |
| Middletown and Unionville Railroad | M&U, MU | 1913 | 1947 | Middletown and New Jersey Railway | - | |
| Middletown, Unionville and Water Gap Railroad | ERIE | 1866 | 1913 | Middletown and Unionville Railroad | - | |
| Midland Railroad of New Jersey | ERIE | 1880 | 1881 | New York, Susquehanna and Western Railroad | - | |
| Mohawk and Adirondack Railroad | NYC | 1891 | 1891 | Herkimer, Newport and Poland Extension Railway, St. Lawrence and Adirondack Railroad | - | |
| Mohawk and Hudson Railroad | NYC | 1826 | 1847 | Albany and Schenectady Railroad | - | |
| Mohawk and Malone Railway | NYC | 1892 | 1913 | New York Central and Hudson River Railroad | - | |
| Mohawk Valley Railroad | NYC | 1851 | 1853 | New York Central Railroad | - | |
| Mohawk Valley and Northern Railway | NYC | 1890 | 1891 | Herkimer, Newport and Poland Narrow Gauge Railway | - | |
| Montauk Extension Railroad | LI | 1893 | 1902 | Long Island Rail Road | - | |
| Montclair Railway | ERIE | 1867 | 1875 | Montclair and Greenwood Lake Railway | - | |
| Montclair and Greenwood Lake Railway | ERIE | 1875 | 1878 | New York and Greenwood Lake Railway | - | |
| Montgomery and Erie Railway | ERIE | 1866 | 1954 | Erie Railroad | - | |
| Monticello and Port Jervis Railway | NH | 1869 | 1875 | Port Jervis and Monticello Railroad | - | |
| Montreal and Champlain Railroad | CN | 1857 | 1864 | Grand Trunk Railway | - | |
| Montreal and Plattsburgh Railroad | D&H | 1868 | 1873 | New York and Canada Railroad | - | |
| Mount McGregor Railroad | 1889 | 1898 | Saratoga Northern Railway | - | ||
| Nanuet and New City Railroad | ERIE | 1871 | New Jersey and New York Railroad | - | ||
| Napierville Junction Railway | NJ | D&H | Still exists as a nonoperating subsidiary of the Canadian Pacific Railway | |||
| New England Railroad | NH | 1895 | 1908 | New York, New Haven and Hartford Railroad | - | |
| New Jersey Midland Railway | ERIE | 1874 | 1880 | Midland Railroad of New Jersey | - | |
| New Jersey and New York Railroad | ERIE | 1880 | 1967 | Erie–Lackawanna Railroad | - | |
| New Jersey and New York Railway | ERIE | 1873 | 1880 | New Jersey and New York Railroad | - | |
| New Jersey and New York Extension Railroad | ERIE | 1886 | 1936 | New Jersey and New York Railroad | - | |
| New York and Albany Railroad | NYC | 1832 | 1846 | New York and Harlem Railroad | - | |
| New York and Atlantic Railway | 1880 | 1887 | West Brooklyn Railroad | - | ||
| New York, Auburn and Lansing Railroad | 1900 | 1914 | Central New York Southern Railroad | - | ||
| New York Bay Extension Railroad | LI | 1892 | 1902 | Long Island Rail Road | - | |
| New York, Bay Ridge and Jamaica Railroad | LI | 1875 | 1885 | New York, Brooklyn and Manhattan Beach Railway | - | |
| New York and Boston Railroad | NYC | 1869 | 1872 | New York, Boston and Northern Railway | - | |
| New York, Boston and Montreal Railway | NH, NYC, RUT | 1873 | 1876 | Bennington and Rutland Railway, New York, Rutland and Montreal Railroad, New York, Westchester and Putnam Railway, Newburgh, Dutchess and Connecticut Railroad | - | |
| New York, Boston and Northern Railway | NH, NYC | 1872 | 1873 | New York, Boston and Montreal Railway | - | |
| New York and Brighton Beach Railway | 1878 | 1884 | Sea Beach and Brighton Railroad | - | ||
| New York, Brooklyn and Manhattan Beach Railway | LI | 1885 | 1925 | Long Island Rail Road | - | |
| New York and Canada Railroad | D&H | 1872 | 1908 | Delaware and Hudson Company | - | |
| New York Central Railroad | NYC | NYC | 1914 | 1968 | Penn Central Transportation Company | - |
| New York Central Railroad | NYC | 1853 | 1869 | New York Central and Hudson River Railroad | - | |
| New York Central and Hudson River Railroad | NYC | 1869 | 1914 | New York Central Railroad | - | |
| New York Central Niagara River Railroad | NYC | 1877 | 1913 | New York Central and Hudson River Railroad | - | |
| New York, Chicago and St. Louis Railroad | NKP | NKP | 1887 | 1964 | Norfolk and Western Railway | - |
| New York, Chicago and St. Louis Railway | NKP | 1881 | 1887 | New York, Chicago and St. Louis Railroad | - | |
| New York City and Northern Railroad | NYC | 1878 | 1887 | New York and Northern Railway | - | |
| New York and Coney Island Railroad | 1879 | South Brooklyn Railway | Electrified in 1899 | |||
| New York Connecting Railroad | NYCN | NH/ PRR | 1892 | 1976 | Consolidated Rail Corporation | - |
| New York Cross Harbor Railroad Terminal Corporation | NYCH | 1983 | 2006 | New York New Jersey Rail, LLC | - | |
| New York Dock Railway | NYD | 1910 | 1983 | New York Cross Harbor Railroad Terminal Corporation | - | |
| New York and Eastern Railway | NYER | 2003 | 2004 | N/A | Never operated | |
| New York and Erie Railroad | ERIE | 1832 | 1861 | Erie Railway | - | |
| New York and Flushing Railroad | LI | 1859 | 1891 | Long Island Rail Road | - | |
| New York and Greenwood Lake Railway | ERIE | 1878 | 1943 | Erie Railroad | - | |
| New York and Harlem Railroad | NYC | 1831 | Still exists as a lessor of the Metro-North Commuter Railroad | |||
| New York and Hempstead Railroad | LIRR | 1871 | 1875 | Southern Hempstead Branch Railroad | - | |
| New York and Hempstead Plains Railroad | LIRR | 1870 | 1871 | New York and Hempstead Railroad | - | |
| New York, Housatonic and Northern Railroad | 1863 | 1881 | Westchester Railway | - | ||
| New York and Jamaica Railroad | LI | 1859 | 1860 | Long Island Rail Road | - | |
| New York, Kingston and Syracuse Railroad | NYC | 1872 | 1875 | Ulster and Delaware Railroad | - | |
| New York, Lackawanna and Western Railway | DL&W | 1880 | 1945 | Delaware, Lackawanna and Western Railroad | - | |
| New York, Lake Erie and Western Railroad | ERIE | 1878 | 1895 | Erie Railroad | - | |
| New York and Long Beach Railroad | LI | 1880 | 1907 | Long Island Rail Road | - | |
| New York and Mahopac Railroad | NYC | 1871 | 1880 | New York and Harlem Railroad | - | |
| New York and Manhattan Beach Railway | LI | 1876 | 1885 | New York, Brooklyn and Manhattan Beach Railway | - | |
| New York and Massachusetts Railway | NH | 1887 | 1893 | Poughkeepsie and Eastern Railway | - | |
| New York and New England Railroad | NH | 1873 | 1895 | New England Railroad | - | |
| New York and New Haven Railroad | NH | 1846 | 1872 | New York, New Haven and Hartford Railroad | - | |
| New York, New Haven and Hartford Railroad | NH | NH | 1872 | 1969 | Penn Central Transportation Company | - |
| New York and Northern Railway | NYC | 1887 | 1893 | New York and Putnam Railroad | - | |
| New York, Ontario and Western Railway | O&W, OW | NH | 1880 | 1957 | N/A | - |
| New York and Oswego Midland Railroad | NH | 1866 | 1879 | Ithaca, Auburn and Western Railroad, New York, Ontario and Western Railway | - | |
| New York and Ottawa Railroad | NYC | 1897 | 1904 | New York and Ottawa Railway | - | |
| New York and Ottawa Railway | NYC | 1905 | 1913 | New York Central and Hudson River Railroad | - | |
| New York, Pennsylvania and Ohio Railroad | ERIE | 1880 | 1896 | Nypano Railroad | - | |
| New York and Pennsylvania Railroad | 1896 | 1902 | New York and Pennsylvania Railway | - | ||
| New York and Pennsylvania Railway | 1904 | 1935 | N/A | - | ||
| New York and Putnam Railroad | NYC | 1894 | 1913 | New York Central and Hudson River Railroad | - | |
| New York and Rockaway Railroad | LI | 1870 | 1903 | Jamaica and South Shore Railroad | - | |
| New York and Rockaway Beach Railway | LI | 1887 | 1921 | Long Island Rail Road | - | |
| New York, Rutland and Montreal Railroad | RUT | 1883 | 1893 | Lebanon Springs Railroad | - | |
| New York and Sea Beach Railway | 1876 | 1896 | Sea Beach Railway | - | ||
| New York, Susquehanna and Western Railroad | ERIE | 1881 | 1958 | N/A | - | |
| New York, West Shore and Buffalo Railway | NYC | 1880 | 1885 | West Shore Railroad | - | |
| New York, West Shore and Chicago Railroad | NYC | 1870 | 1879 | New York, West Shore and Buffalo Railway | - | |
| New York, Westchester and Putnam Railway | NYC | 1877 | 1878 | New York City and Northern Railroad | - | |
| New York, Woodhaven and Rockaway Railroad | LI | 1877 | 1887 | New York and Rockaway Beach Railway | - | |
| Newark and Marion Railway | PRR | 1900 | 1917 | Marion Railway | - | |
| Newburgh, Dutchess and Connecticut Railroad | NH | 1877 | 1907 | Central New England Railway | - | |
| Newburgh and New York Railway | ERIE | 1865 | 1895 | New York, Lake Erie and Western Railroad | - | |
| Newton Falls and Northern Railroad | 1908 | 1919 | N/A | - | ||
| Newtown and Flushing Railroad | LIRR | 1871 | 1876 | N/A | - | |
| Niagara Bridge and Canandaigua Railroad | NYC | 1858 | 1890 | New York Central and Hudson River Railroad | - | |
| Niagara Falls Branch Railroad | NYC | 1875 | 1913 | New York Central and Hudson River Railroad | - | |
| Niagara Falls International Bridge Company | CN | 1846 | - | |||
| Niagara Junction Railway | NJ, NIAJ | ERIE/ LV/ NYC | 1892 | 1976 | Consolidated Rail Corporation | Electrified in 1913 |
| Niagara River Bridge Company | NYC | 1881 | 2002 | N/A | Still exists as an abandoned subsidiary of CNCP Niagara–Windsor Partnership, a nonoperating joint subsidiary of the Canadian National Railway and Canadian Pacific Railway | |
| Nickel Plate Connecting Railroad | NKP | 1917 | - | |||
| Norfolk and Western Railway | N&W, NW | 1964 | 1998 | Norfolk Southern Railway | - | |
| North River Railroad | NYC | 1881 | 1881 | New York, West Shore and Buffalo Railway | - | |
| North River Railway | NYC | 1880 | 1881 | North River Railroad | - | |
| North Shore Railroad | LI | 1863 | 1884 | Long Island City and Flushing Railroad | - | |
| Northern Railroad | RUT | 1845 | 1865 | Ogdensburg and Lake Champlain Railroad | - | |
| Northern Railroad of New Jersey | ERIE | 1858 | 1943 | Erie Railroad | - | |
| Northern Adirondack Railroad | NYC | 1883 | 1895 | Northern New York Railroad | - | |
| Northern Adirondack Extension Railroad | NYC | 1886 | 1890 | Northern Adirondack Railroad | - | |
| Northern Central Railway | PRR | 1956 | 1976 | Consolidated Rail Corporation | - | |
| Northern Central Railway | PRR | 1863 | 1911 | Pennsylvania Railroad | - | |
| Northern Extension of the Rochester, Nunda and Pennsylvania Railroad | PRR | 1872 | 1872 | Rochester, Nunda and Pennsylvania Railroad | - | |
| Northern New York Railroad | NYC | 1895 | 1897 | New York and Ottawa Railroad | - | |
| Norwood and Montreal Railroad | NYC | 1884 | 1889 | Rome, Watertown and Ogdensburg Railroad | - | |
| Norwood and St. Lawrence Railroad | NSL | 1901 | 1974 | Ogdensburg and Norwood Railway | - | |
| Nyack and Northern Railroad | ERIE | 1868 | 1892 | Nyack and Southern Railroad | - | |
| Nyack and Southern Railroad | ERIE | 1899 | 1944 | Erie Railroad | - | |
| Nypano Railroad | ERIE | 1896 | 1941 | Erie Railroad | - | |
| Ogdensburg and Lake Champlain Railroad | RUT | 1864 | 1898 | Ogdensburg and Lake Champlain Railway | - | |
| Ogdensburg and Lake Champlain Railway | RUT | 1898 | 1899 | Rutland Railroad | - | |
| Ogdensburg and Morristown Railroad | NYC | 1871 | 1886 | Utica and Black River Railroad | - | |
| Ogdensburg and Norwood Railway | ONRY | 1965 | 1977 | St. Lawrence Railroad | - | |
| Olean Railroad | PS&N | 1880 | 1881 | Allegany Central Railroad | - | |
| Olean, Bradford and Warren Railroad | PRR | 1877 | 1916 | Western New York and Pennsylvania Railway | - | |
| Olean and Salamanca Railroad | PRR | 1882 | 1883 | Buffalo, New York and Philadelphia Railroad | - | |
| Ontario, Carbondale and Scranton Railway | NH | 1889 | 1957 | N/A | - | |
| Ontario Southern Railroad | PRR | 1875 | 1879 | Lake Ontario Southern Railway | - | |
| Orange County Railroad | L&HR | 1888 | 1907 | Lehigh and Hudson River Railway | - | |
| Oswego Railroad Bridge Company | NYC | 1872 | 1885 | Rome, Watertown and Ogdensburg Railroad | - | |
| Oswego and Rome Railroad | NYC | 1863 | 1913 | New York Central and Hudson River Railroad | - | |
| Oswego and Syracuse Railroad | DL&W | 1839 | 1945 | Delaware, Lackawanna and Western Railroad | - | |
| Otis Railway | 1899 | 1916 | Catskill Mountain Railroad | - | ||
| Otis Elevating Railway | 1885 | 1899 | Otis Railway | - | ||
| Owasco River Railway | OR | LV/ NYC | 1881 | 1976 | N/A | - |
| Oyster Bay Extension Railroad | LI | 1886 | 1913 | Long Island Rail Road | - | |
| Pecksport Connecting Railway | NH | 1886 | 1957 | N/A | - | |
| Peekskill Valley Railroad | 1873 | N/A | long gauge | |||
| Penn Central Transportation Company | PC | 1968 | 1976 | Consolidated Rail Corporation | - | |
| Penn Yan and New York Railway | NYC | 1877 | 1885 | Syracuse, Geneva and Corning Railway | - | |
| Penndel Company | PRR | 1955 | 1976 | Consolidated Rail Corporation | - | |
| Pennsylvania Railroad | PRR | PRR | 1900 | 1968 | Penn Central Transportation Company | - |
| Pennsylvania, New York and Long Island Railroad | PRR | 1902 | 1907 | Pennsylvania Tunnel and Terminal Railroad | - | |
| Pennsylvania and New York Canal and Railroad Company | LV | 1867 | 1888 | Lehigh Valley Railroad | - | |
| Pennsylvania, Poughkeepsie and Boston Railroad | LNE | 1887 | 1895 | Lehigh and New England Railroad | - | |
| Pennsylvania and Rochester Railroad | PRR | 1912 | 1916 | Western New York and Pennsylvania Railway | - | |
| Pennsylvania Tunnel and Terminal Railroad | PRR | 1907 | 1976 | Consolidated Rail Corporation | - | |
| Pere Marquette Railroad | C&O | 1904 | 1917 | Pere Marquette Railway | - | |
| Pere Marquette Railway | PM | C&O | 1917 | 1947 | Chesapeake and Ohio Railway | - |
| Perry Railroad | B&O | 1882 | 1899 | Buffalo, Rochester and Pittsburgh Railway | - | |
| Philadelphia, Reading and New England Railroad | NH | 1892 | 1899 | Central New England Railway | - | |
| Pine Plains and Albany Railroad | RUT | 1872 | 1872 | Harlem Extension Railroad | - | |
| Pittsburgh and New York Railroad | B&O | 1881 | 1881 | Rochester and Pittsburgh Railroad | - | |
| Pittsburg, Shawmut and Northern Railroad | PS&N | 1899 | 1947 | N/A | - | |
| Pittsburgh, Titusville and Buffalo Railway | PRR | 1880 | 1881 | Buffalo, Pittsburgh and Western Railroad | - | |
| Plattsburgh and Dannemora Railroad | D&H | 1878 | - | |||
| Plattsburgh and Montreal Railroad | D&H | 1850 | 1868 | Montreal and Plattsburgh Railroad | - | |
| Pochuck Railroad | LNE | 1897 | 1944 | N/A | - | |
| Port Chester Terminal Railroad | 1901 | - | ||||
| Port Dickinson and Chenango River Railroad | DL&W | 1881 | N/A | - | ||
| Port Jervis and Monticello Railroad | NH | 1875 | 1886 | Port Jervis, Monticello and New York Railroad | - | |
| Port Jervis, Monticello and New York Railroad | NH | 1886 | 1902 | Port Jervis, Monticello and Summitville Railroad | - | |
| Port Jervis, Monticello and Summitville Railroad | NH | 1902 | 1957 | N/A | - | |
| Potsdam and Watertown Railroad | NYC | 1852 | 1860 | Watertown and Rome Railroad | - | |
| Poughkeepsie Bridge Company | NH | 1871 | 1892 | Poughkeepsie Bridge and Railroad Company | - | |
| Poughkeepsie Bridge Railroad | NH | 1888 | 1907 | Central New England Railway | - | |
| Poughkeepsie Bridge and Railroad Company | NH | 1892 | 1892 | Philadelphia, Reading and New England Railroad | - | |
| Poughkeepsie and Connecticut Railroad | NH | 1888 | 1889 | Central New England and Western Railroad | - | |
| Poughkeepsie and Eastern Railroad | NH | 1866 | 1875 | Poughkeepsie, Hartford and Boston Railroad | - | |
| Poughkeepsie and Eastern Railway | NH | 1893 | 1907 | Central New England Railway | - | |
| Poughkeepsie, Hartford and Boston Railroad | NH | 1875 | 1887 | Hartford and Connecticut Western Railroad, New York and Massachusetts Railway | - | |
| Prattsburg Railway | 1917 | 1962 | N/A | - | ||
| Prospect Park and Coney Island Railroad | 1874 | Electrified in 1899 | ||||
| Prospect Park and South Brooklyn Railroad | 1888 | Electrified in 1899 | ||||
| Putnam and Dutchess Railroad | 1871 | 1872 | New York, Boston and Northern Railway | - | ||
| Raquette Lake Railway | NYC | 1899 | 1933 | N/A | - | |
| Raymondville and Waddington Railroad | 1907 | 1908 | Norwood and St. Lawrence Railroad | - | ||
| Rensselaer and Saratoga Railroad | D&H | 1832 | 1945 | Delaware and Hudson Railroad | - | |
| Rhinebeck and Connecticut Railroad | NH | 1870 | 1882 | Hartford and Connecticut Western Railroad | - | |
| R.J. Corman Railroad/Allentown Lines | RJCN | 1996 | 2002 | N/A | - | |
| Rochester and Charlotte Railroad | B&O | 1881 | 1881 | Rochester and Pittsburgh Railroad | - | |
| Rochester and Genesee Valley Railroad | ERIE | 1851 | 1976 | Consolidated Rail Corporation | - | |
| Rochester and Honeoye Valley Railroad | LV | 1888 | 1895 | Rochester Southern Railroad | - | |
| Rochester, Hornellsville and Lackawanna Railroad | PS&N | 1886 | 1889 | Lackawanna and Southwestern Railroad | - | |
| Rochester, Hornellsville and Pine Creek Railroad | PRR | 1872 | 1876 | Geneva, Hornellsville and Pine Creek Railway | - | |
| Rochester and Lake Beach Railroad | NYC | 1888 | 1888 | Rome, Watertown and Ogdensburg Terminal Railroad | - | |
| Rochester and Lake Ontario Railroad | NYC | 1852 | 1855 | New York Central Railroad | - | |
| Rochester, Lockport and Niagara Falls Railroad | NYC | 1850 | 1853 | New York Central Railroad | - | |
| Rochester, New York and Pennsylvania Railroad | PRR, PS&N | 1881 | 1916 | Allegany Central Railroad, Western New York and Pennsylvania Railway | - | |
| Rochester, Nunda and Pennsylvania Railroad | PRR, PS&N | 1870 | 1877 | Rochester, Nunda and Pittsburgh Railroad | - | |
| Rochester, Nunda and Pennsylvania Extension Railroad | PS&N | 1872 | 1872 | Rochester, Nunda and Pennsylvania Railroad | - | |
| Rochester, Nunda and Pittsburgh Railroad | PRR | 1877 | 1881 | Rochester, New York and Pennsylvania Railroad | - | |
| Rochester and Ontario Belt Railway | NYC | 1882 | 1887 | Rochester and Lake Beach Railroad | - | |
| Rochester and Pine Creek Railroad | B&O | 1870 | 1877 | Silver Lake Railroad | - | |
| Rochester and Pittsburgh Railroad | B&O | 1881 | 1885 | Buffalo, Rochester and Pittsburgh Railroad | - | |
| Rochester Southern Railroad | LV | 1895 | 1903 | Lehigh Valley Railway | - | |
| Rochester and Southern Railroad | LV | 1895 | 1895 | Rochester Southern Railroad | - | |
| Rochester and State Line Railroad | B&O | 1869 | 1881 | Rochester and Pittsburgh Railroad | - | |
| Rochester and Syracuse Railroad | NYC | 1850 | 1853 | New York Central Railroad | - | |
| Rockaway Railway | LI | 1871 | 1872 | South Side Railroad of Long Island | - | |
| Rockland Central Railroad | NYC | 1870 | 1873 | Jersey City and Albany Railroad | - | |
| Rockland Central Extension Railroad | NYC | 1872 | 1872 | Rockland Central Railroad | - | |
| Rome and Clinton Railroad | NH | 1869 | 1944 | New York, Ontario and Western Railway | - | |
| Rome, Watertown and Ogdensburg Railroad | NYC | 1861 | 1913 | New York Central and Hudson River Railroad | - | |
| Rome, Watertown and Ogdensburg Terminal Railroad | NYC | 1886 | 1890 | Rome, Watertown and Ogdensburg Railroad | - | |
| Rondout and Oswego Railroad | NYC | 1866 | 1872 | New York, Kingston and Syracuse Railroad | - | |
| Rutland Railroad | RUT | RUT | 1899 | 1950 | Rutland Railway | - |
| Rutland Railway | RUT | RUT | 1950 | 1961 | New York Central Railroad | - |
| Rutland–Canadian Railroad | RUT | 1898 | 1901 | Rutland Railroad | - | |
| Rutland and Washington Railroad | D&H | 1850 | 1865 | Troy, Salem and Rutland Railroad | - | |
| Sackets Harbor and Ellisburg Railroad | 1851 | 1858 | Sackett's Harbor, Rome and New York Railroad | - | ||
| Sackett's Harbor, Rome and New York Railroad | 1860 | 1862 | N/A | - | ||
| Sackets Harbor and Saratoga Railroad | D&H | 1852 | 1857 | Lake Ontario and Hudson River Railroad | - | |
| St. Lawrence Railroad | SLAW | 1977 | 1990 | St. Lawrence and Raquette River Railroad | - | |
| St. Lawrence and Adirondack Railroad | NYC | 1891 | 1892 | Mohawk and Malone Railway | - | |
| St. Lawrence and Adirondack Railway | NYC | 1895 | Still exists as a nonoperating subsidiary of CSX Transportation | |||
| St. Lawrence and Hudson Railway | STLH | CP | 1996 | 2001 | Canadian Pacific Railway | - |
| St. Lawrence and Raquette River Railroad | SLRR | 1990 | 1998 | New York and Ogdensburg Railway | - | |
| Salamanca, Bradford and Allegheny River Railroad | PRR | 1880 | 1881 | Buffalo, Pittsburgh and Western Railroad | - | |
| Saranac and Lake Placid Railroad | D&H | 1890 | 1903 | Chateaugay and Lake Placid Railway | - | |
| Saratoga and Fort Edward Railroad | D&H | 1832 | Saratoga and Washington Railroad | - | ||
| Saratoga and Hudson River Railroad | NYC | 1864 | 1867 | New York Central Railroad | - | |
| Saratoga Lake Railway | B&M | 1880 | 1886 | Troy, Saratoga and Northern Railroad | - | |
| Saratoga and Mount McGregor Railway | 1896 | 1897 | Saratoga Northern Railway | - | ||
| Saratoga, Mount McGregor and Lake George Railroad | 1882 | 1888 | Mount McGregor Railroad | - | ||
| Saratoga Northern Railway | 1899 | 1901 | Hudson Valley Railway | - | ||
| Saratoga and St. Lawrence Railroad | 1885 | 1897 | Bombay and Moira Railroad | - | ||
| Saratoga and Schenectady Railroad | D&H | 1831 | - | |||
| Saratoga and Schuylerville Railroad | 1945 | 1956 | N/A | - | ||
| Saratoga and Washington Railroad | D&H | 1834 | 1855 | Saratoga and Whitehall Railroad | - | |
| Saratoga and Whitehall Railroad | D&H | 1855 | 1868 | Rensselaer and Saratoga Railroad | - | |
| Schenectady and Duanesburgh Railroad | D&H | 1873 | 1903 | Delaware and Hudson Company | - | |
| Schenectady and Margaretville Railroad | 1906 | 1907 | Delaware and Eastern Railway | - | ||
| Schenectady and Mechanicville Railroad | D&H | 1867 | - | |||
| Schenectady and Susquehanna Railroad | D&H | 1869 | 1873 | Schenectady and Duanesburgh Railroad | - | |
| Schenectady and Troy Railroad | NYC | 1836 | 1853 | New York Central Railroad | - | |
| Schoharie Valley Railroad | D&H | 1865 | 1874 | Schoharie Valley Railway | - | |
| Schoharie Valley Railway | D&H | 1880 | 1941 | N/A | - | |
| Schuylerville and Upper Hudson Railroad | B&M | 1869 | 1877 | Mechanicville and Fort Edward Railroad | - | |
| Scottsville and LeRoy Railroad | 1836 | N/A | - | |||
| Sea Beach Railway | 1896 | 1912 | New York Consolidated Railroad | Electrified in 1898 | ||
| Sea Beach and Brighton Railroad | 1886 | 1892 | Brighton and Bensonhurst Railroad | - | ||
| Seneca County Railway | LV | 1891 | 1903 | Lehigh Valley Railway | - | |
| Sharon and Ceres Terminal Railroad | 1904 | 1904 | New York and Pennsylvania Railway | - | ||
| Shawmut Connecting Railroad | PS&N | 1900 | 1905 | Pittsburg, Shawmut and Northern Railroad | - | |
| Silver Creek and Dunkirk Railway | NYC | 1890 | 1894 | Lake Shore and Michigan Southern Railway | - | |
| Silver Lake Railroad | B&O | 1877 | 1886 | Silver Lake Railway | - | |
| Silver Lake Railroad | B&O | 1869 | Rochester and Pine Creek Railroad | - | ||
| Silver Lake Railway | B&O | 1886 | 1910 | Buffalo, Rochester and Pittsburgh Railway | - | |
| Skaneateles Railroad | 1866 | 1941 | Skaneateles Short Line Railroad | - | ||
| Skaneateles Railroad | 1836 | 1841 | Skaneateles and Jordan Railroad | - | ||
| Skaneateles and Jordan Railroad | 1841 | 1851 | N/A | - | ||
| Skaneateles Short Line Railroad | SSL | 1940 | 1981 | N/A | - | |
| Smithtown and Port Jefferson Railroad | LI | 1870 | 1892 | Long Island Railroad North Shore Branch | - | |
| Sodus Bay and Southern Railroad | PRR | 1882 | 1886 | Elmira and Lake Ontario Railroad | - | |
| Sodus Point and Southern Railroad | PRR | 1852 | 1875 | Ontario Southern Railroad | - | |
| South Brooklyn Railroad and Terminal Company | 1887 | 1899 | South Brooklyn Railway | - | ||
| South Brooklyn Railway | SBK | 1900 | Electric until 1961 | |||
| South Brooklyn and Flatbush Railroad | 1885 | 1887 | South Brooklyn Railroad and Terminal Company | - | ||
| South Side Railroad of Long Island | LI | 1860 | 1874 | Southern Railroad of Long Island | - | |
| Southern Railroad of Long Island | LI | 1874 | 1880 | Brooklyn and Montauk Railroad | - | |
| Southern Central Railroad | LV | 1865 | 1895 | Lehigh and New York Railroad | - | |
| Southern Hempstead Branch Railroad | LIRR | 1875 | 1882 | Stewart Railroad | - | |
| Southern New York Railroad | 1888 | 1970 | N/A | - | ||
| Southern Westchester Railroad | 1871 | 1872 | New York, Housatonic and Northern Railroad | - | ||
| Southfield Branch Railroad | 1868 | 1894 | N/A | - | ||
| Springville and Sardinia Railroad | 1878 | 1886 | N/A | - | ||
| Spuyten Duyvil and Port Morris Railroad | NYC | 1867 | 1913 | New York Central and Hudson River Railroad | - | |
| Staten Island Railroad | SIRC | B&O | 1971 | 1991 | N/A | - |
| Staten Island Railroad | B&O | 1851 | 1872 | Staten Island Railway | - | |
| Staten Island Railway | B&O | 1873 | 1944 | Staten Island Rapid Transit Railway | - | |
| Staten Island Rapid Transit Railroad | B&O | 1880 | 1899 | Staten Island Rapid Transit Railway | - | |
| Staten Island Rapid Transit Railway | SIR | B&O | 1899 | 1971 | Staten Island Railroad | - |
| Sterling Mountain Railway | 1864 | 1955 | N/A | - | ||
| Stewart Railroad | LIRR | 1873 | 1892 | Long Island Rail Road | - | |
| Stony Clove and Catskill Mountain Railroad | NYC | 1881 | 1901 | Ulster and Delaware Railroad | - | |
| Suffern Railroad | ERIE | 1907 | 1907 | Erie and Jersey Railroad | - | |
| Suspension Bridge and Erie Junction Railroad | ERIE | 1868 | 1896 | Erie Railroad | - | |
| Syracuse and Baldwinsville Railroad | DL&W | 1886 | 1891 | Syracuse and Baldwinsville Railway | - | |
| Syracuse and Baldwinsville Railway | DL&W | 1891 | N/A | - | ||
| Syracuse and Binghamton Railroad | DL&W | 1851 | 1856 | Syracuse and Southern Railroad | - | |
| Syracuse, Binghamton and New York Railroad | DL&W | 1857 | 1945 | Delaware, Lackawanna and Western Railroad | - | |
| Syracuse and Chenango Railroad | NYC | 1873 | 1877 | Syracuse, Chenango and New York Railroad | - | |
| Syracuse and Chenango Valley Railroad | NYC | 1868 | 1873 | Syracuse and Chenango Railroad | - | |
| Syracuse, Chenango and New York Railroad | NYC | 1877 | 1883 | Syracuse, Ontario and New York Railway | - | |
| Syracuse, Geneva and Corning Railway | NYC | 1875 | 1909 | Geneva, Corning and Southern Railroad | - | |
| Syracuse Junction Railroad | NYC | 1873 | 1879 | New York Central and Hudson River Railroad | - | |
| Syracuse Northern Railroad | NYC | 1868 | 1875 | Syracuse and Northern Railroad | - | |
| Syracuse and Northern Railroad | NYC | 1875 | 1875 | Rome, Watertown and Ogdensburg Railroad | - | |
| Syracuse Northwestern Railroad | NYC | 1874 | 1875 | Syracuse, Phoenix and Oswego Railroad | - | |
| Syracuse, Ontario and New York Railway | NYC | 1883 | 1891 | West Shore Railroad | - | |
| Syracuse, Phoenix and Oswego Railroad | NYC | 1871 | 1885 | Syracuse, Phoenix and Oswego Railway | - | |
| Syracuse, Phoenix and Oswego Railway | NYC | 1885 | 1889 | Rome, Watertown and Ogdensburg Railroad | - | |
| Syracuse and Southern Railroad | DL&W | 1856 | 1857 | Syracuse, Binghamton and New York Railroad | - | |
| Syracuse and Utica Railroad | NYC | 1836 | 1853 | New York Central Railroad | - | |
| Syracuse and Utica Direct Railroad | NYC | 1853 | 1853 | New York Central Railroad | - | |
| Terminal Railway of Buffalo | NYC | 1895 | 1914 | New York Central Railroad | - | |
| Ticonderoga Railroad | D&H | 1889 | 1957 | Delaware and Hudson Railroad | - | |
| Tioga Railroad | ERIE | 1876 | 1885 | New York, Lake Erie and Western Railroad | - | |
| Tioga Central Railroad | TIOC | 1987 | 1992 | Owego and Harford Railway | - | |
| Tioga Coal, Iron Mining and Manufacturing Company | NYC | 1833 | 1851 | Corning and Blossburg Railroad | - | |
| Tivoli Hollow Railroad | NYC | 1893 | 1913 | New York Central and Hudson River Railroad | - | |
| Tonawanda Railroad | NYC | 1832 | 1850 | Buffalo and Rochester Railroad | - | |
| Tonawanda Island Railroad | TIRL | 1983 | 1996 | N/A | - | |
| Tonawanda Island Bridge Company | NYC | 1883 | 1913 | New York Central and Hudson River Railroad | - | |
| Tonawanda Valley Railroad | 1880 | 1881 | Tonawanda Valley and Cuba Railroad | - | ||
| Tonawanda Valley and Cuba Railroad | 1881 | 1886 | Attica and Freedom Railroad | - | ||
| Tonawanda Valley Extension Railroad | 1880 | 1881 | Tonawanda Valley and Cuba Railroad | - | ||
| Troy and Bennington Railroad | B&M | 1851 | 1946 | Boston and Maine Railroad | - | |
| Troy and Boston Railroad | B&M | 1848 | 1887 | Fitchburg Railroad | - | |
| Troy and Greenbush Railroad | NYC | 1845 | 1976 | Consolidated Rail Corporation | - | |
| Troy and Rutland Railroad | D&H | 1849 | 1865 | Troy, Salem and Rutland Railroad | - | |
| Troy, Salem and Rutland Railroad | D&H | 1865 | 1868 | Rensselaer and Saratoga Railroad | - | |
| Troy, Saratoga and Northern Railroad | B&M | 1886 | 1892 | Fitchburg Railroad | - | |
| Troy Union Railroad | B&M/ D&H/ NYC | 1851 | 1964 | N/A | - | |
| Tunesassa and Bradford Railroad | 1905 | - | ||||
| Ulster and Delaware Railroad | NYC | 1875 | 1932 | New York Central Railroad | - | |
| Unadilla Valley Railway | UV | 1890 | 1960 | N/A | - | |
| Union Railroad | ERIE | 1851 | 1946 | Erie Railroad | - | |
| Union Railroad | DL&W | 1856 | 1858 | Syracuse, Binghamton and New York Railroad | - | |
| Union Terminal Railroad of Buffalo | PRR | 1884 | 1917 | Western New York and Pennsylvania Railway | - | |
| Union Village and Johnsonville Railroad | D&H | 1866 | 1874 | Greenwich and Johnsonville Railroad | - | |
| United States and Canada Railroad | CN | 1883 | 1960 | Canadian National Railway | - | |
| Upper Hudson Railroad | B&M | 1872 | 1872 | Schuylerville and Upper Hudson Railroad | - | |
| Utica and Black River Railroad | NYC | 1860 | 1913 | New York Central and Hudson River Railroad | - | |
| Utica, Chenango and Cortland Railroad | DL&W | 1870 | 1883 | Erie and Central New York Railway | - | |
| Utica, Chenango and Susquehanna Valley Railway | DL&W | 1866 | 1945 | Delaware, Lackawanna and Western Railroad | - | |
| Utica City Railroad | NH | 1862 | 1866 | Utica and Waterville Railroad | - | |
| Utica, Clinton and Binghamton Railroad | NH | 1868 | 1942 | New York, Ontario and Western Railway | - | |
| Utica, Horseheads and Elmira Railroad | LV | 1870 | 1871 | Utica, Ithaca and Elmira Railroad | - | |
| Utica, Ithaca and Elmira Railroad | LV | 1871 | 1878 | Utica, Ithaca and Elmira Railway | - | |
| Utica, Ithaca and Elmira Railway | LV | 1878 | 1884 | Elmira, Cortland and Northern Railroad | - | |
| Utica and Schenectady Railroad | NYC | 1833 | 1853 | New York Central Railroad | - | |
| Utica and Unadilla Valley Railroad | 1888 | 1895 | Unadilla Valley Railway | - | ||
| Utica and Waterville Railroad | NH | 1866 | 1868 | Utica, Clinton and Binghamton Railroad | - | |
| Valley Railroad | DL&W | 1869 | 1945 | Delaware, Lackawanna and Western Railroad | - | |
| Vermont and Canada Railroad | CN | 1845 | 1891 | Central Vermont Railroad | - | |
| Vermont Central Railroad | CN | 1870 | 1873 | Central Vermont Railroad | - | |
| Vermont Central Railroad | CN | 1849 | 1855 | N/A | Leased the Vermont and Canada Railroad | |
| Wabash Railroad | WAB | 1898 | 1915 | Wabash Railway | - | |
| Wabash Railroad | WAB | WAB | 1942 | 1964 | Norfolk and Western Railway | - |
| Wabash Railway | WAB | 1915 | 1942 | Wabash Railroad | - | |
| Wallkill Valley Railroad | NYC | 1877 | 1952 | New York Central Railroad | - | |
| Wallkill Valley Railway | NYC | 1866 | 1877 | Wallkill Valley Railroad | - | |
| Warwick Valley Railroad | L&HR | 1860 | 1882 | Lehigh and Hudson River Railway | - | |
| Watertown and Rome Railroad | NYC | 1832 | 1861 | Rome, Watertown and Ogdensburg Railroad | - | |
| Waverly and State Line Railway | LV | 1867 | 1903 | Lehigh Valley Railway | - | |
| Wellsville, Addison and Galeton Railroad | WAG | 1954 | 1973 | N/A | - | |
| Wellsville, Bradford and Eldred Railroad | 1881 | 1893 | N/A | - | ||
| Wellsville and Buffalo Railroad | 1915 | 1916 | N/A | - | ||
| Wellsville, Coudersport and Pine Creek Railroad | B&O | 1881 | 1954 | Buffalo and Susquehanna Railroad | - | |
| West Brooklyn Railroad | 1887 | 1889 | N/A | - | ||
| West Davenport Railroad | D&H | 1891 | 1891 | Cooperstown and Charlotte Valley Railroad | - | |
| West Shore Railroad | NYC | 1885 | 1952 | New York Central Railroad | - | |
| West Shore Hudson River Railroad | NYC | 1867 | 1877 | New York, West Shore and Chicago Railroad | - | |
| West Side and Yonkers Railway | NYC | 1879 | 1887 | New York City and Northern Railroad | - | |
| West Troy and Green Island Railroad | D&H | 1870 | - | |||
| Westchester Railway | 1881 | N/A | - | |||
| Western New York Railway | PRR | 1895 | 1895 | Western New York and Pennsylvania Railway | - | |
| Western New York and Pennsylvania Railroad | PRR | 1887 | 1895 | Western New York and Pennsylvania Railway | - | |
| Western New York and Pennsylvania Railway | PRR | 1895 | 1955 | Penndel Company | - | |
| Western New York and Pennsylvania Railway of New York | PRR | 1887 | 1887 | Western New York and Pennsylvania Railroad | - | |
| Western Vermont Railroad | RUT | 1845 | 1865 | Bennington and Rutland Railroad | - | |
| Wharton Valley Railway | NH | 1888 | 1942 | N/A | - | |
| Whitehall and Plattsburgh Railroad | D&H | 1866 | 1873 | New York and Canada Railroad | - | |
| Whitestone and Westchester Railroad | LI | 1871 | 1887 | Long Island City and Flushing Railroad | - | |
| Williamsport and Elmira Railroad | PRR | 1850 | 1860 | Elmira and Williamsport Railroad | - | |
| Williamstown and Redfield Railroad | 1865 | N/A | - | |||
| Windsor Beach and Ontario Railroad | NYC | 1887 | 1888 | Rome, Watertown and Ogdensburg Terminal Railroad | - | |
| Yonkers Rapid Transit Railway | NYC | 1879 | 1887 | New York and Northern Railway | - |
Street and electric railways
- Adirondack Lakes' Traction Company
- Albany and Hudson Railroad
- Albany and Hudson Railway and Power Company
- Albany Southern Railroad
- Amsterdam Street Railroad
- Atlantic Avenue Railroad
- Auburn and Northern Electric Railroad
- Auburn and Syracuse Electric Railroad
- Babylon Railroad
- Ballston Terminal Railroad
- Batavia Traction Company
- Belt Line Railway
- Bennington and North Adams Street Railway
- Berkshire Street Railway
- Binghamton Railway
- Black River Traction Company
- Bleecker Street and Fulton Ferry Railroad
- Bridge Operating Company
- Broadway Railroad
- Broadway Railway
- Broadway Ferry and Metropolitan Avenue Railroad
- Broadway and Seventh Avenue Railroad
- Bronx Traction Company
- Brooklyn Central Railroad
- Brooklyn Central and Jamaica Railroad
- Brooklyn City Railroad
- Brooklyn City and Newtown Railroad
- Brooklyn Crosstown Railroad
- Brooklyn Elevated Railroad
- Brooklyn Elevated Railway
- Brooklyn Elevated Silent Safety Railway
- Brooklyn Heights Railroad
- Brooklyn and Jamaica Railway
- Brooklyn–Manhattan Transit Corporation
- Brooklyn and North River Railroad
- Brooklyn, Queens County and Suburban Railroad
- Brooklyn Rapid Transit Company
- Brooklyn Union Elevated Railroad
- Buffalo City Railway
- Buffalo and Depew Railway
- Buffalo and Erie Railway
- Buffalo and Lake Erie Traction Company
- Buffalo, Lockport and Rochester Railway
- Buffalo Southern Railway
- Buffalo and Williamsville Electric Railway
- Bush Terminal Railroad
- Bushwick Railroad
- Calvary Cemetery, Greenpoint and Brooklyn Railroad
- Canarsie Railroad
- Catskill Electric Railway
- Cayadutta Electric Railroad
- Cedarhurst Railway
- Central City Rail Way
- Central Crosstown Railroad
- Central Park, North and East River Railroad
- Chautauqua Traction Company
- Christopher and Tenth Street Railroad
- City Island Railroad
- Cohoes Railway
- Coney Island and Brooklyn Railroad
- Coney Island Elevated Railway
- Coney Island, Fort Hamilton and Brooklyn Railroad
- Coney Island and Gravesend Railway
- Corning and Painted Post Street Railway
- Cortland County Traction Company
- Crosstown Street Railway of Buffalo
- DeKalb Avenue and North Beach Railroad
- DeKalb Avenue and North Brooklyn Railroad
- Dry Dock, East Broadway and Battery Railroad
- East River and Atlantic Ocean Railroad
- Eastern New York Railroad
- Echo Line Railroad
- Eighth Avenue Railroad
- Electric City Railway
- Elmira, Corning and Waverly Railway
- Elmira and Seneca Lake Traction Company
- Elmira Water, Light and Railroad Company
- Empire State Railroad
- Far Rockaway Railroad
- Fishkill Electric Railway
- Flushing and College Point Electric Railway
- Fonda, Johnstown and Gloversville Railroad
- Fort George and Eleventh Avenue Railroad
- Fort George Extension Railway
- Forty-second Street and Grand Street Ferry Railroad
- Forty-second Street, Manhattanville and St. Nicholas Avenue Railway
- Freeport Railroad
- Fulton Street Railroad
- Geneva, Seneca Falls and Auburn Railroad
- Geneva, Waterloo, Seneca Falls and Cayuga Lake Traction Company
- Gilbert Elevated Railway
- Glen Cove Railroad
- Gloversville Street Electric Railroad
- Grand Street and Newtown Railroad
- Great South Bay Ferry Company
- Greenbush and Nassau Electric Railway
- Greenpoint and Lorimer Street Railroad
- Greenwood and Coney Island Railroad
- Harlem Bridge, Morrisania and Fordham Railway
- Hornell Traction Company
- *Hornellsville and Canisteo Railway
- *Hornellsville Electric Railway
- Houston, West Street and Pavonia Ferry Railroad
- Hudson Light and Power and Railroad Company
- Hudson and Manhattan Railroad
- Hudson River and Eastern Traction Company
- Hudson Street Railway
- Hudson Tunnel Railway
- Hudson Valley Railway
- Huntington Railroad
- Independent City Owned Rapid Transit Railroad
- Interborough Rapid Transit Company
- International Railway
- Ithaca Street Railway
- Ithaca Traction Corporation
- Jamaica and Brooklyn Railroad
- Jamaica and Brooklyn Road Company
- Jamaica Central Railways
- Jamestown Street Railway
- Jamestown, Westfield and Northwestern Railroad
- Jerome Park Railway
- Johnstown, Gloversville and Kingsboro Horse Railroad
- Kaydeross Railroad
- Keeseville, Ausable Chasm and Lake Champlain Railroad
- Kings County Electric Railway
- Kings County Elevated Railway
- Kingsbridge Railway
- Kingston Consolidated Railroad
- Long Beach Marine Railway
- Long Island City and Newtown Railroad
- Long Island Electric Railway
- Long Island Traction Company
- Manhattan Railway
- Manhattan Bridge Three Cent Line
- Manhattan and Queens Traction Company
- Manhattan and Queens Traction Corporation
- Marine Railway
- Melrose and West Morrisania Railroad
- Metropolitan Crosstown Railway
- Metropolitan Elevated Railway
- Metropolitan Street Railway
- Mid-Crosstown Railway
- Mineola, Hempstead and Freeport Traction Company
- Mineola, Roslyn and Port Washington Traction Company
- Mount Beacon-on-Hudson Association
- Mount Vernon and Eastchester Railway
- Nassau Railroad
- Nassau County Railway
- Nassau Electric Railroad
- New Paltz, Highland and Poughkeepsie Traction Company
- New Rochelle Railway and Transit Company
- New Williamsburgh and Flatbush Railroad
- New York Railways
- New York, Auburn and Lansing Railroad
- New York City Railway
- New York City Interborough Railway
- New York and Coney Island Railroad
- New York Consolidated Railroad
- New York Elevated Railroad
- New York, Fordham and Bronx Railway
- New York and Harlem Railroad
- New York and Jersey Railroad
- New York and Long Island Traction Company
- New York Municipal Railway
- New York and North Shore Railway
- New York and North Shore Traction Company
- New York and Queens County Railway
- New York and Stamford Railway
- New York State Railways
- New York, Westchester and Boston Railway
- New York, Westchester and Connecticut Traction Company
- Newark and Marion Railway
- Newtown Railway
- Niagara Gorge Railroad
- Niagara Junction Railway
- Ninth Avenue Railroad
- North and East River Railway
- North End Street Railway
- North Third Avenue and Fleetwood Park Railroad
- Northport Traction Company
- Ocean Electric Railway
- Ogdensburg Street Railway
- One Hundred and Forty-fifth Street Crosstown Railroad
- Oneida Railway
- Oneonta and Mohawk Valley Railroad
- Orange County Traction Company
- Park Avenue Railroad
- Paul Smith's Electric Light and Power and Railroad Company
- Peekskill Lighting and Railroad Company
- Pelham Park Railroad
- Pelham Park and City Island Railway
- Penn Yan, Keuka Park and Branchport Railway
- Penn Yan and Lake Shore Railway
- Plattsburgh Traction Company
- Port Jervis Electric Light, Power, Gas and Railroad Company
- Port Jervis Traction Company
- Poughkeepsie City and Wappingers Falls Electric Railway
- Poughkeepsie and Wappingers Falls Railway
- Prospect Park and Coney Island Railroad
- Prospect Park and South Brooklyn Railroad
- Putnam and Westchester Traction Company
- Queens Railway
- Queensboro Bridge Railway Company
- Richmond County Railroad
- Richmond Light and Railroad Company
- Richmond Street Railway
- Rochester Railway Company
- Rochester and Eastern Rapid Railway
- Rochester, Lockport and Buffalo Railroad
- Rochester and Manitou Railroad
- Rochester and Sodus Bay Railway
- Rochester and Suburban Railway
- Rochester Subway
- Rochester and Syracuse Railroad
- Rochester, Syracuse and Eastern Railroad
- Rockaway Village Railroad
- St. Lawrence International Electric Railroad and Land Company
- Schenectady Railway
- Sea Beach Railway
- Sea View Railroad
- Seashore Municipal Railroad
- Second Avenue Railroad
- Sixth Avenue Railroad
- Soundview Transportation Company
- South Brooklyn Street Railroad
- South Ferry Railroad
- South Shore Traction Company
- Southern Boulevard Railroad
- Southern New York Railway
- Southern New York Power and Railway Corporation
- Southfield Beach Railroad
- Staten Island Electric Railroad
- Staten Island Horse Railroad
- Staten Island Midland Railroad
- Staten Island Midland Railway
- Staten Island Traction Company
- Suburban Rapid Transit Company
- Suburban Traction Company
- Suffolk Traction Company
- Syracuse, Lake Shore and Northern Railroad
- Syracuse Northern Electric Railway
- Syracuse Rapid Transit Railway
- Syracuse and South Bay Electric Railroad
- Syracuse and Suburban Railroad
- Tarrytown, White Plains and Mamaroneck Railway
- Third Avenue Railroad
- Third Avenue Railway
- Third Avenue Bridge Company
- Thirty-fourth Street Railroad
- Thirty-fourth Street Crosstown Railway
- Thirty-fourth Street Ferry and Eleventh Avenue Railroad
- Troy and New England Railway
- Twenty-eighth and Thirtieth Streets Crosstown Railroad
- Twenty-eighth and Twenty-ninth Streets Crosstown Railroad
- Twenty-third Street Railway
- Union Railroad
- Union Railway of New York City
- United Railroad
- United Traction Company
- Utica Belt Line Street Railroad
- Utica and Mohawk Valley Railway
- Van Brunt Street and Erie Basin Railroad
- Van Nest, West Farms and Westchester Traction Company
- Wakefield and Westchester Traction Company
- Wallkill Transit Company
- Warren and Jamestown Street Railway
- Washington Street and State Asylum Railroad
- Waverly, Sayre and Athens Traction Company
- West Farms and Westchester Traction Company
- West Side and Yonkers Patent Railway
- Westchester Electric Railroad
- Westchester Street Railroad
- Western New York and Pennsylvania Traction Company
- Williamsbridge and Westchester Traction Company
- Yonkers Railroad
- Niagara and Western New York Railroad
- OnTrack
- Prospect Park Incline Railway
- Crown Point Iron Company's Railroad
- Fulton Chain Railroad
- Marion River Carry Railroad
- Peekskill Iron Company
- Dunderberg Spiral Railway
- New England and Oswego Railroad
- New York and Boston Rapid Transit Company
- Ogdensburg, Clayton and Rome Railroad
- Portland, Rutland, Oswego and Chicago Railroad