The Indiana Subdivision
is a railroad
line owned and operated by CSX Transportation
in the U.S. states
. The line runs from Cincinnati, Ohio
west to Washington, Indiana
along a former Baltimore and Ohio Railroad
At its east end, the Indiana Subdivision becomes the Cincinnati Terminal Subdivision; it continues west as the Illinois Subdivision. Along the way, the line intersects the Hoosier Subdivision at Mitchell, Indiana.
The line, built by the Ohio and Mississippi Railroad
, was completed in 1857. It passed to the Baltimore and Ohio Railroad
and CSX via leases and mergers.