DDC may stand for:
Computing Digital distribution copy, a pirated movie release type Digital down converter, a method in digital signal processing Direct digital control, in control theory Display Data Channel, a communication protocol between a graphics card and a monitor Distributed Disaggregated Chassis, an open design for a router chassis by the Open Compute Project
Organizations Dairy Development Corporation, of Nepal Dansk Datamatik Center, a defunct Danish software research and development centre of the 1980s DDC-I, a Danish and American company created from the work of the Dansk Datamatik Center Defense Technical Information Center, formerly the Defense Documentation Center for Scientific and Technical Information Detroit Diesel Corporation District Development Committee, in Nepal District Development Council Dzongkha Development Commission United States District Court for the District of Columbia
Science and medicine Dideoxycytidine, or ddC or zalcitabine DOPA decarboxylase, or Aromatic-L-amino-acid decarboxylase
Transport Dodge City Regional Airport, Ford County, Kansas, United States (by IATA code) Dum Dum Cantonment railway station, Kolkata, West Bengal, India (by Indian Railways station code)
Other uses Deep Dickollective, or D/DC Dewey Decimal Classification Double disc court Double Dealing Character, the fourteenth mainline entry in the Touhou Project video game series