- Dallas Cowboys Cheerleaders
- Day Chocolate Company
- DCC Plc , an Irish investments holding company
- Debian Common Core Alliance
- Defence Construction Canada
- Deputy Chief Constable , a British police rank
- Descending Chain Condition , in the field of order theory in mathematics
- Dicyclohexylcarbodiimide , a peptide coupling reagent used in organic synthesis
- Digital Command Control , a protocol of the NMRA for model railroading
- Digital Compact Cassette , a now-defunct audio cassette format
- Digital Content Creation, a category of tools used for creation of electronic media
- Direct Cable Connection , for networking two computers together
- Direct Client-to-Client , a protocol for Internet Relay Chat
- Directed Channel Change, part of the ATSC Transport stream Program And System Information Protocol table
- Distributed Checksum Clearinghouse , a computer algorithm, often used in detecting e-mail spam
- Double cotton covered, a type of flexible electric Cable which was common before the introduction of plastic insulation materials
- Dublin City Council
- Dutchess Community College
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