'''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
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