CID

CID may refer to:

Film

Center for International Development, at Harvard University
Central Institute for the Deaf, in St. Louis, Missouri
Committee of Imperial Defence, a former part of the government of Great Britain and the British Empire
Conseil International de la Danse, an umbrella organization for all forms of dance in the world
Council of Industrial Design, a UK body renamed the Design Council
University of Colombo, Centre for Instrument Development, in Sri Lanka

Caller ID, a telephone service that transmits the caller's telephone number to the called party
Card Identification Number, a security feature on credit cards
Cell ID, used to identify cell phone towers
Centro de Investigaciones Digitales of the Universidad de La Habana
Certified Interconnect Designer, a certification for printed circuit-board designers
CID fonts, a font file format

Channel-iron deposits, one of the major sources of saleable iron ore
Controlled Impact Demonstration, a project to improve aircraft crash survivability
Cubic inch displacement, a measurement in internal combustion engines

Centro Insular de Deportes, an indoor sports arena in Spain
Chinatown–International District, Seattle
CID The Dummy, a video game
Combat Identification, the accurate characterization of detected objects for military action
Common-interest development, a form of housing
Community improvement district, an area within which businesses are required to pay an additional tax
The Eastern Iowa Airport (IATA code CID), serving Cedar Rapids, Iowa
Corpus des inscriptions de Delphes, a compendium of ancient Greek inscriptions from Delphi