English abbreviations from ccir to ccle
- CCIR (Comité consultatif international pour la radio (French for Consultative Committee on International Radio, became the ITU Radiocommunication Sector, ITU-R, in 1992))
- CCIS (Command and Control Information System)
- CCIT (Comité consultatif international télégraphique (French for International Telegraph Consultative Committee, merged with the CCIF in 1956 to form the CCITT))
- CCITT (Comité consultatif international téléphonique et télégraphique (French for International Telegraph and Telephone Consultative Committee, became the ITU Telecommunication Standardization Sector, ITU-T, in 1992))
- CCITT (obs.) (Standards organization that has been replaced by ITU-T)
- CCIU (CEF (Common Equipment Facility) Control Interface Unit)
- CCJ (Calicut Airport)
- CCJTF (Commander, Combined Joint Task Force)
- CCK (Cholecystokinin)
- CCKE (Center for Content and Knowledge Engineering)
- CCKT (Concerned Citizens of King Township [Ontario])
- CCL (casing collar locator (in perforation or completion operations, the tool provides depths by correlation of the casing string's magnetic anomaly with known casing features))
- CCLB (Centre for Canadian Language Benchmarks)
- CCLC (César Chávez Learning Center)
- CCLCS (Canadian Centre for Language and Cultural Studies)
- CCLE (Center for Cognitive Liberty & Ethics)