The Decatur Junction Railway (reporting mark DT) is a Class III railroad which operates in the state of Illinois.

It is one of several short-line railroads owned by Pioneer Railcorp.

On September 23, 1993, the Decatur Junction Railway Co. (DT) signed a lease agreement for the lease rights of two segments of track in east central Illinois from Assumption to Cisco owned by a consortium of grain dealers.

The railroad's principal commodities are grain, fertilizer and plastics.

[1] The change in operators left the Decatur Junction with a 21-mile (34 km) line running from Elwin, near Decatur, south to Assumption.