The Cincinnati, Hamilton and Dayton Railway (CH&DRy) was an electrified interurban railway that existed between 1926 and 1930 in the U.S. state of Ohio.
In 1926, the former Cincinnati and Dayton Traction Company reorganised under this name. The C&DTC was the defunct Ohio Electric Railway's line between Dayton and Cincinnati.
In 1930, the CH&DRy merged with the Indiana, Columbus and Eastern, and the Lima-Toledo Railroad, to form the Cincinnati and Lake Erie Railroad.