The Class DE11 (DE11形) is a five-axle C-B wheel arrangement diesel-hydraulic shunting locomotive type operated in Japan since 1968.

A total of 116 locomotives were built between 1968 and 1979, and as of 1 April 2016[update], 10 locomotives remain in service, operated by East Japan Railway Company (JR East) and Japan Freight Railway Company (JR Freight).

[1] The Class DE11 was developed from the Class DE10 locomotive design, with the train-heating steam generator and multiple-working equipment removed and replaced with concrete ballast weight to increase the axle load from 13 t to 14 t to improve adhesion for use in shunting work.

[1] Features included additional sound-insulating around the engine compartment and a noise reduction unit on the exhaust chimney.

[1] Four Class DE11-2000 locomotives, numbered DE11 2001 to 2004 were built in 1979, incorporating some of the noise-reduction features tried out on DE11 1901.