| Abbreviation | Definition |
|---|---|
| CCAM | Caribbean Coastal Area Management |
| CCAMLR | Convention of the Conservation of Antarctic Marine Living Resources |
| CCAR | Center for Astrodynamics Research |
| CCCO | Committee on Climate Changes and the Oceans |
| CCD | Calcite Compensation Depth |
| CCDC | Caribbean Coastal Data Centre |
| CCDP | Climate Change Detection Project |
| CCIW | Canada Centre for Inland Waters |
| CCL | Commission for Climatology |
| CCM | Community Climate Model |
| CCMA | Center for Coastal Monitoring and Assessment |
| CCN | Cloud Condensation Nuclei |
| CCOL | Coordinating Committee on the Ozone Layer |
| CCOP | Committee for Coordination of Joint Prospecting for Mineral Resources in Asian Offshore Areas |
| CCOPE | Cooperative Convective Precipitation Experiment |
| CCRP | California Coastal Records Project |
| CCRP | Coastal Conservation Research Program |
| CCRS | Canada Centre for Remote Sensing |
| CCS | Command and Control System |
| CCSF | Core Composite depth below Sea Floor |