List of Maine railroads
The following railroads operate in the U.S. state of Maine.
Common freight carriers
- Central Maine and Quebec Railway
- Eastern Maine Railway
- *Operates Woodland Rail, LLC
- Maine Northern Railway
- Pan Am Railways
- St. Lawrence and Atlantic Railroad
- Turners Island, LLC
Passenger carriers
- Amtrak
- Belfast & Moosehead Lake Railway
- Downeast Scenic Railroad
- Seashore Trolley Museum
Two foot gauge railways
- Boothbay Railway Village
- Maine Narrow Gauge Railroad Co. & Museum
- Sandy River and Rangeley Lakes Railroad
- Wiscasset, Waterville and Farmington Railway
Defunct railroads
| Name | Mark | System | From | To | Successor | Notes |
| Androscoggin Railroad | MEC | 1848 | 1911 | Maine Central Railroad | ||
| Androscoggin and Kennebec Railroad | MEC | 1845 | 1862 | Maine Central Railroad | ||
| Aroostook Northern Railroad | BAR | 1897 | 1901 | Bangor and Aroostook Railroad | ||
| Aroostook River Railroad | CP | 1873 | 1989 | N/A | ||
| Aroostook Valley Railroad | AVL | 1902 | 1996 | N/A | Electric until 1946 | |
| Atlantic and North-West Railway | CP | 1886 | 1994 | Canadian American Railroad | ||
| Atlantic and St. Lawrence Railroad | CN | 1845 | 1960 | Canadian National Railway | ||
| Bangor and Aroostook Railroad | BAR | BAR | 1891 | 2003 | Montreal, Maine and Atlantic Railway | |
| Bangor and Katahdin Iron Works Railway | BAR | 1881 | 1901 | Bangor and Aroostook Railroad | ||
| Bangor, Oldtown and Milford Railroad | MEC | 1855 | 1870 | European and North American Railway | ||
| Bangor and Orono Railroad | MEC | 1847 | 1850 | Penobscot Railroad | ||
| Bangor and Piscataquis Railroad | BAR | 1861 | 1899 | Bangor and Aroostook Railroad | ||
| Bangor and Piscataquis Canal and Railroad Company | MEC | 1833 | 1855 | Bangor, Oldtown and Milford Railroad | ||
| Belfast and Moosehead Lake Railroad | BML | MEC | 1868 | 2001 | N/A | Continues as a tourist railroad |
| Belfast & Moosehead Lake Railway | MEC | 1867 | 1868 | Belfast and Moosehead Lake Railroad | ||
| Boston and Maine Corporation | BM | B&M | 1963 | Still exists as a lessor of Pan Am Railways operating subsidiary Springfield Terminal Railway | ||
| Boston and Maine Railroad | B&M, BM | B&M | 1844 | 1964 | Boston and Maine Corporation | |
| Bridgton and Harrison Railway | 1927 | 1941 | N/A | |||
| Bridgton and Saco River Railroad | MEC | 1881 | 1930 | Bridgton and Harrison Railway | ||
| Buckfield Branch Railroad | MEC | 1847 | 1863 | Portland and Oxford Central Railroad | ||
| Bucksport and Bangor Railroad | MEC | 1873 | 1882 | Eastern Maine Railway | ||
| Calais Railroad | MEC | 1838 | 1849 | Calais and Baring Railroad | ||
| Calais Railway | MEC | 1832 | 1838 | Calais Railroad | ||
| Calais and Baring Railroad | MEC | 1849 | 1870 | St. Croix and Penobscot Railroad | ||
| Canadian American Railroad | CDAC | 1994 | 2003 | Montreal, Maine and Atlantic Railway | ||
| Canadian Atlantic Railway | CP | 1988 | 1994 | Canadian American Railroad, Eastern Maine Railway | ||
| Canadian National Railway | CN | CN | 1923 | 1989 | St. Lawrence and Atlantic Railroad | |
| Canadian Pacific Railway | CP | CP | 1886 | 1988 | Canadian Atlantic Railway | |
| Consolidated European and North American Railway | MEC | 1872 | 1880 | European and North American Railway | ||
| Dexter and Newport Railroad | MEC | 1853 | 1939 | Maine Central Railroad | ||
| Dexter and Piscataquis Railroad | MEC | 1888 | 1939 | Maine Central Railroad | ||
| Eastern Railroad | B&M | 1847 | 1890 | Boston and Maine Railroad | ||
| Eastern Maine Railway | MEC | 1882 | 1936 | Maine Central Railroad | ||
| European and North American Railway | MEC | 1880 | 1955 | Maine Central Railroad | ||
| European and North American Railway | MEC | 1850 | 1872 | Consolidated European and North American Railway | ||
| Eustis Railroad | MEC | 1903 | 1911 | Sandy River and Rangeley Lakes Railroad | ||
| Fish River Railroad | BAR | 1901 | 1903 | Bangor and Aroostook Railroad | ||
| Franklin and Megantic Railroad | MEC | 1884 | 1897 | Franklin and Megantic Railway | ||
| Franklin and Megantic Railway | MEC | 1897 | 1908 | Sandy River and Rangeley Lakes Railroad | ||
| Franklin, Somerset and Kennebec Railway | 1897 | 1901 | Wiscasset, Waterville and Farmington Railroad | |||
| Georges Valley Railroad | 1889 | 1919 | Knox Railroad | |||
| Grand Trunk Railway | GT | CN | 1853 | 1923 | Canadian National Railway | |
| Great Falls and South Berwick Branch Railroad | B&M | 1841 | 1865 | Portsmouth, Great Falls and Conway Railroad | ||
| Houlton Branch Railroad | CP | 1867 | 1989 | N/A | ||
| International Railway of Maine | CP | 1881 | 1886 | Atlantic and North-West Railway | ||
| Kennebec Central Railroad | 1889 | 1929 | N/A | |||
| Kennebec and Portland Railroad | MEC | 1836 | 1864 | Portland and Kennebec Railroad | ||
| Kennebec Valley Railroad | MEC | 1903 | 1904 | Somerset Railway | ||
| Kennebec and Wiscasset Railroad | 1854 | 1873 | Wiscasset and Moosehead Lake Railroad | |||
| Kennebunk and Kennebunkport Railroad | B&M | 1882 | 1919 | Boston and Maine Railroad | ||
| Kingfield and Dead River Railroad | MEC | 1893 | 1897 | Kingfield and Dead River Railway | ||
| Kingfield and Dead River Railway | MEC | 1897 | 1908 | Sandy River and Rangeley Lakes Railroad | ||
| Knox Railroad | 1919 | 1932 | N/A | |||
| Knox and Lincoln Railroad | MEC | 1864 | 1890 | Penobscot Shore Line Railroad | ||
| Knox and Lincoln Railway | MEC | 1891 | 1901 | Maine Central Railroad | ||
| Leeds and Farmington Railroad | MEC | 1865 | 1874 | Maine Central Railroad | ||
| Lewiston and Auburn Railroad | CN | 1872 | - | |||
| Lewy's Island Railroad | MEC | 1854 | 1870 | St. Croix and Penobscot Railroad | ||
| Lime Rock Railroad | 1864 | 1942 | N/A | - | ||
| Machiasport Railroad | 1845 | 1872 | Whitneyville and Machiasport Railroad | |||
| Madrid Railroad | MEC | 1902 | 1908 | Sandy River and Rangeley Lakes Railroad | ||
| Maine Central Railroad | MEC | MEC | 1862 | Still exists as a lessor of Pan Am Railways operating subsidiary Springfield Terminal Railway | ||
| Maine Coast Railroad | MC | 1990 | 2000 | Safe Handling Rail, Inc. | ||
| Maine, New Hampshire and Massachusetts Railroad | B&M | 1836 | 1844 | Boston and Maine Railroad | ||
| Maine Shore Line Railroad | MEC | 1881 | 1888 | Maine Central Railroad | ||
| Monson Railroad | 1885 | 1943 | N/A | |||
| Monson and Athens Railroad | 1881 | 1885 | Monson Railroad | |||
| Montreal, Maine and Atlantic Railway | MMA | MMA | 2002 | 2004 | Central Maine and Quebec Railway | Went bankrupt following the Lac-Mégantic derailment |
| New Brunswick Railway | CP | 1878 | 1890 | Canadian Pacific Railway | ||
| New Brunswick and Canada Railway | CP | 1870 | 1882 | New Brunswick Railway | ||
| Northern Maine Seaport Railroad | BAR | 1904 | 1919 | Bangor and Aroostook Railroad | ||
| Norway Branch Railroad | CN | 1879 | ||||
| Oldtown and Lincoln Railroad | MEC | 1852 | 1864 | European and North American Railway | ||
| Orchard Beach Railroad | B&M | 1876 | 1893 | Boston and Maine Railroad | ||
| Palmer and Machiasport Railroad | 1842 | 1845 | Machiasport Railroad | |||
| Patten and Sherman Railroad | BAR | 1895 | 1901 | Bangor and Aroostook Railroad | ||
| Penobscot Railroad | MEC | 1853 | 1863 | European and North American Railway | ||
| Penobscot and Kennebec Railroad | MEC | 1845 | 1862 | Maine Central Railroad | ||
| Penobscot and Lake Megantic Railroad | CP | 1871 | 1881 | International Railway of Maine | ||
| Penobscot, Lincoln and Kennebec Railroad | MEC | 1849 | 1864 | Knox and Lincoln Railroad | ||
| Penobscot Shore Line Railroad | MEC | 1889 | 1891 | Knox and Lincoln Railway | ||
| Penobscot and Union River Railroad | MEC | 1870 | 1873 | Bucksport and Bangor Railroad | ||
| Phillips and Rangeley Railroad | MEC | 1889 | 1908 | Sandy River and Rangeley Lakes Railroad | ||
| Portland and Kennebec Railroad | MEC | 1862 | 1874 | Maine Central Railroad | ||
| Portland and Ogdensburg Railroad | MEC | 1867 | 1887 | Portland and Ogdensburg Railway | ||
| Portland and Ogdensburg Railway | MEC | 1886 | 1943 | Maine Central Railroad | ||
| Portland and Oxford Central Railroad | MEC | 1857 | 1896 | Portland and Rumford Falls Railway | ||
| Portland and Rochester Railroad | B&M | 1864 | 1900 | Boston and Maine Railroad | ||
| Portland and Rumford Falls Railroad | MEC | 1907 | 1946 | Maine Central Railroad | ||
| Portland and Rumford Falls Railway | MEC | 1890 | 1946 | Maine Central Railroad | ||
| Portland, Saco and Portsmouth Railroad | B&M | 1837 | 1900 | Boston and Maine Railroad | ||
| Portland Terminal Company | PTM | MEC | 1911 | Still exists as a lessor of Pan Am Railways operating subsidiary Springfield Terminal Railway | ||
| Portland Union Railway Station Company | MEC | 1887 | 1911 | Portland Terminal Company | ||
| Portsmouth, Great Falls and Conway Railroad | B&M | 1865 | 1890 | Boston and Maine Railroad | - | |
| Rangeley Lakes and Megantic Railroad | MEC | 1909 | 1914 | Maine Central Railroad | - | |
| Rockport Railroad | 1886 | 1896 | N/A | - | ||
| Rumford Falls and Buckfield Railroad | MEC | 1874 | 1896 | Portland and Rumford Falls Railway | - | |
| Rumford Falls and Rangeley Lakes Railroad | MEC | 1894 | 1936 | N/A | - | |
| Safe Handling Rail, Inc. | 2000 | 2003 | Maine Eastern Railroad | - | ||
| St. Croix and Penobscot Railroad | MEC | 1870 | 1899 | Washington County Railroad | - | |
| Sandy River Railroad | MEC | 1879 | 1908 | Sandy River and Rangeley Lakes Railroad | - | |
| Sandy River and Rangeley Lakes Railroad | MEC | 1908 | 1935 | N/A | - | |
| Sanford and Eastern Railroad | 1949 | 1961 | N/A | - | ||
| Schoodic Stream Railroad | BAR | 1906 | 1907 | Bangor and Aroostook Railroad | - | |
| Sebasticook and Moosehead Railroad | MEC | 1886 | 1910 | Maine Central Railroad | - | |
| Somerset Railroad | MEC | 1860 | 1883 | Somerset Railway | - | |
| Somerset Railway | MEC | 1904 | 1911 | Maine Central Railroad | - | |
| Somerset Railway | MEC | 1883 | 1904 | Kennebec Valley Railroad | - | |
| Somerset and Kennebec Railroad | MEC | 1848 | 1874 | Maine Central Railroad | - | |
| Van Buren Bridge Company | VB | BAR | 1913 | 2003 | Montreal, Maine and Atlantic Railway | - |
| Washington County Railroad | MEC | 1893 | 1903 | Washington County Railway | - | |
| Washington County Railway | MEC | 1903 | 1911 | Maine Central Railroad | - | |
| Waterville and Wiscasset Railroad | 1895 | 1901 | Wiscasset, Waterville and Farmington Railroad | - | ||
| Whitneyville and Machiasport Railroad | 1872 | 1892 | N/A | - | ||
| Wiscasset and Moosehead Lake Railroad | 1873 | 1876 | Wiscasset and Quebec Railroad | - | ||
| Wiscasset and Quebec Railroad | 1876 | 1901 | Wiscasset, Waterville and Farmington Railroad | - | ||
| Wiscasset, Waterville and Farmington Railroad | 1901 | 1906 | Wiscasset, Waterville and Farmington Railway | - | ||
| Wiscasset, Waterville and Farmington Railway | 1907 | 1933 | N/A | - | ||
| York and Cumberland Railroad | B&M | 1846 | 1865 | Portland and Rochester Railroad | - | |
| York Harbor and Beach Railroad | B&M | 1883 | 1927 | N/A | - |
;Private carriers
- Bald Mountain Railroad
- Eagle Lake and West Branch Railroad
- Ray Lumber Company
- Schmick Handle & Lumber Company
- Seboomook Lake and Saint John Railroad
- South Bog Railway
- Wild River Railroad
- Acadian Railway
- Green Mountain Cog Railway
- Androscoggin Electric Company
- Aroostook Valley Railroad
- Atlantic Shore Railway
- Atlantic Shore Line Railway
- Auburn, Mechanic Falls and Norway Street Railway
- Auburn and Turner Railroad
- Augusta, Hallowell and Gardiner Railroad
- Augusta and Waterville Railway
- Augusta, Winthrop and Gardiner Railway
- Bangor Railway and Electric Company
- Bangor, Hampden and Winterport Railway
- Bangor and Northern Railroad
- Bangor, Orono and Old Town Railway
- Bangor Street Railway
- Bath Street Railway
- Benton and Fairfield Railway
- Biddeford and Saco Railroad
- Brunswick Electric Railroad
- Brunswick and Yarmouth Street Railway
- Calais Street Railway
- Camden and Rockport Street Railroad
- Cumberland County Power and Light Company
- Eliot Bridge Company
- Fairfield and Shawmut Railway
- Hampden and Winterport Railway
- Hampden and Winterport Electric Railway and Light Company
- Kittery and Eliot Street Railway
- Lewiston and Auburn Horse Railroad
- Lewiston, Augusta and Waterville Street Railway
- Lewiston, Brunswick and Bath Street Railway
- Lewiston, Winthrop and Augusta Street Railway
- Mousam River Railroad
- Norway and Paris Street Railway
- Old Town Electric Company
- Old Town, Orono and Veazie Railway
- Old Town Street Railway
- Portland Railroad
- Portland and Brunswick Street Railway
- Portland, Gray and Lewiston Railroad
- Portland–Lewiston Interurban
- Portsmouth, Dover and York Street Railway
- Portsmouth, Kittery and York Street Railway
- Public Works Company
- Rockland, South Thomaston and Owls Head Railway
- Rockland, South Thomaston and St. George Street Railway
- Rockland Street Railway
- Rockland, Thomaston and Camden Street Railway
- Sanford and Cape Porpoise Railway
- Skowhegan and Norridgewock Railway and Power Company
- Somerset Traction Company
- Thomaston Street Railway
- Waterville and Fairfield Railroad
- Waterville and Fairfield Railway and Light Company
- Waterville, Fairfield and Oakland Railway
- Waterville and Oakland Street Railway
- Portland and Rutland Railroad
- Portland, Rutland, Oswego and Chicago Railroad