| Acronym | Definition |
|---|
| CCN | CMS (Centers for Medicare and Medicaid Services) Certification Number |
| CCN | Church Communication Network |
| CCN | Complex Communication Needs (various locations) |
| CCN | Convention Collective Nationale (French: National Collective Bargaining Agreement) |
| CCN | Cherry Creek North (Denver, CO; shopping area) |
| CCN | Carson City (Amtrak station code; Carson City, NV) |
| CCN | Certified Clinical Nutritionist |
| CCN | Capitale Circolante Netto (Italian: Net Working Capital) |
| CCN | Cloud Condensation Nuclei |
| CCN | Critical Care Nurse |
| CCN | Commission de la Capitale Nationale (French: National Capital Commission; Canada) |
| CCN | Conseil Consultatif National (French: National Advisory Council) |
| CCN | Community Care Network |
| CCN | Computer and Communications Network |
| CCN | Cordless Communication Network |
| CCN | Credit Card Network |
| CCN | Campus Computer Network |
| CCN | Continuous Control Node |
| CCN | Cyr61-Ctgf-Nov (proteins) |
| CCN | College Central Network (jobs) |
| CCN | Centre Chorégraphique National (French: National Choreographic Center) |
| CCN | Capstone College of Nursing (University of Alabama) |
| CCN | Corvette Club Norway |
| CCN | Credit Card Number |
| CCN | Conseil Canadien des Normes (Standards Council of Canada) |
| CCN | Carrier Comfort Network (HVAC) |
| CCN | Cyclomatic Complexity Number (software metric) |
| CCN | Cyclin |
| CCN | Charging Control Node (Ericsson) |
| CCN | Cardiac Care Network |
| CCN | Climate Change Network (various organizations) |
| CCN | Corruption, Collusion, and Nepotism (objectionable business practices) |
| CCN | Council of Churches in Namibia |
| CCN | Center for Cognitive Neuroscience (University of Pennsylvania) |
| CCN | Caribbean Communications Network |
| CCN | Center for Civic Networking |
| CCN | Conference Call Notes (reports) |
| CCN | Community Compassion Network |
| CCN | Cross Country National (racing) |
| CCN | Carrying Capacity Network |
| CCN | Canadian Corporate News |
| CCN | Crossroads Career Network |
| CCN | Certified Contractors Network |
| CCN | Coastal Community Network (Canada) |
| CCN | Centre Cardiologique du Nord (French: North Cardiological Center) |
| CCN | Computer Consulting Network (advertising) |
| CCN | Catholic Communications Network |
| CCN | Clay Coated News (packaging) |
| CCN | Clil Cascade Network (EU) |
| CCN | Command and Control North (Vietnam, US special forces unit) |
| CCN | Creative Communication Network (various organizations) |
| CCN | Category Control Number (Underwriters Laboratories) |
| CCN | Contract Change Notice |
| CCN | County Councils Network (Special Interest Group within the Local Government Association, UK) |
| CCN | Common Communication Network (European network infrastructure) |
| CCN | Constabulary Communication Network |
| CCN | Content-Centric Networking |
| CCN | Claim Control Number (Medicare tracking number) |
| CCN | China Commodity Net |
| CCN | Career Center Network (San Diego) |
| CCN | Canadian Cohousing Network |
| CCN | Customer Contact Name |
| CCN | Centre de Communication Nord (French: Northern Communications Center; Brussels, Belgium) |
| CCN | Career Counseling Network (various schools) |
| CCN | Christian Connection Network |
| CCN | Case Control Number |
| CCN | Chemical Consultants Network |
| CCN | Community Conservation Network (Honolulu, HI) |
| CCN | Community Chat Network (IRC) |
| CCN | Cycle Component Network (various locations) |
| CCN | Credit Cards Now |
| CCN | Chemistry Contact Network |
| CCN | Cybergrace Christian Network |
| CCN | Clover Corner News (4-H clubs) |
| CCN | Companhia Colonial de Navegação (Lisbon, Portugal steamship company) |
| CCN | Computer Communications Network |
| CCN | Colorectal Cancer Network |
| CCN | Climate Capital Network (various locations) |
| CCN | Cable Communication Nagaragawa (Gifu, Japan) |
| CCN | Croatian Commercial Network |
| CCN | Configuration Change Notice |
| CCN | Création de Contenu Numérique (French: Digital Content Creation) |
| CCN | Contrôle Commande Numérique (French: Digital Command Control) |
| CCN | Calling Card Number |
| CCN | Cerebro Cortical Necrosis |
| CCN | Continuous Control Node (Cisco) |
| CCN | Canoë Club Normand (French: Normandy Canoe Club; Normandy, France) |
| CCN | Common Core Network (IPv6) |
| CCN | Control-Connection-Notification |
| CCN | Contract Change Notification |
| CCN | Cell Change Notification (network assisted cell change procedure in GSM/GPRS networks) |
| CCN | Communauté de Communes du Naucellois (French: Naucellois Community of Communes; Naucelle, France) |
| CCN | Certified Critical Care Nurse |
| CCN | Contract Change Negotiation (NASA) |
| CCN | Communauté Chemin Neuf (Chemin Neuf Community; Lyon, France) |
| CCN | Change Control Number |
| CCN | Consistent Checkpoint Number |
| CCN | Category Code Number |
| CCN | Copper Cable Network (Afghanistan) |
| CCN | Création et Communication Numérique (French: Creation and Digital Communication) |
| CCN | Comedy Central Nederland (Dutch: Comedy Central Netherlands; TV station) |
| CCN | Cooperative Caring Network |
| CCN | Common Control Node |
| CCN | Command Center Network |
| CCN | Classification Change Notice |
| CCN | Construction Change Notice |
| CCN | Customer Coordination Node |
| CCN | Campus Christian Network (various universities; Ghana) |
| CCN | Criminal Case Number (police report) |
| CCN | Complaint Control Number (law enforcement) |
| CCN | Continental Control Network |
| CCN | Contract Completion Notice |
| CCN | COMSEC Controlling Node |
| CCN | Clinical Cognitive Neuroscience Laboratory (various locations) |
| CCN | Cisco Content Networking Architecture (Cisco) |
| CCN | Cross-Connect Network (AT&T) |
| CCN | Crittenden Connection Networks |
| CCN | Chauffage et Climatisation du Nord (French: Northern Heating and Air) |
| CCN | Communauté Chrétienne des Nations (French: Christian Community of Nations; Cameroon) |
| CCN | Cornwall Capital Network (Canada) |
| CCN | Commercial Circuit Number |
| CCN | Comcast Cable Network |
| CCN | Connective Tissue Growth Factor Cystein-Rich Protein Nephroblastoma Overexpressed |
| CCN | Critical Carbon Number |
| CCN | Compassion Capital Network (Our Health, Inc.) |