Chesapeake & Ohio Railroad

Chesapeake and Ohio Railway

The C&O system map in 1950
Reporting mark	C&O, CO
Locale	District of Columbia, Illinois, Indiana, Kentucky, Michigan, New York, Ohio, Pennsylvania, Virginia, West Virginia and Wisconsin
Dates of operation	1869–1987
Successor	CSX
Track gauge	4 ft 8 1⁄2 in (1,435 mm) standard gauge
Headquarters	Cleveland, Ohio

The Chesapeake and Ohio Railway (reporting marks C&O, CO) was a Class I railroad formed in 1869 in Virginia from several smaller Virginia railroads begun in the 19th century. Led by industrialist Collis P. Huntington, it reached from Virginia's capital city of Richmond to the Ohio River by 1873, where the railroad town (and later city) of Huntington, West Virginia was named for him.

Tapping the coal reserves of West Virginia, the C&O's Peninsula Extension to new coal piers on the harbor of Hampton Roads resulted in the creation of the new City of Newport News. Coal revenues also led the forging of a rail link to the Midwest, eventually reaching Columbus, Cincinnati and Toledo in Ohio and Chicago, Illinois.

By the early 1960s the C&O was headquartered in Cleveland, Ohio, USA. In 1972, under the leadership of Cyrus Eaton, it became part of the Chessie System, along with the Baltimore and Ohio and Western Maryland Railway. The Chessie System was later combined with the Seaboard Coast Line and Louisville and Nashville, both the primary components of the Family Lines System, to become a key portion of CSX Transportation (CSXT) in the 1980s. A substantial portion of Conrail was added in 1999.