| Abbreviation | Definition |
|---|---|
| CCWC | Central California Women's Conference |
| CCYC | Carolina Christian Youth Conference |
| CDC | Conference on Decision and Control |
| CDC | IEEE Conference on Decision and Control |
| CDEP | Conference data exchange protocol |
| CDIC | Communicable Diseases Immunisation Conference |
| CDIC | Cyber Defense Initiative Conference |
| CDMH | Conference of Deputies Ministers of Health |
| CDS | Chronic Disease Symposium |
| CDS | International Conference on Configurable Distributed Systems |
| CECAFA | Confederation of East and Central Africa Football Association |
| CECC | Central European Conference on Cryptology |
| CECC | Conference of European Constitutional Courts |
| CECC | Continuing Education and Conference Center |
| CEDR | Conference of European Directors of Roads |
| CEE | Conference on English Education |
| CEEC | Central European Energy Conference |
| CEEC | Christian Engineering Education Conference |
| CEEC | Commerce and Engineering Environmental Conference |
| CEEC | Commerce Engineering Environmental Conference |