| Abbreviation | Definition |
|---|---|
| CRUMB | Curatorial Resource for Upstart Media Bliss |
| CS | Chamber of Secrets |
| CSBP | Cuisinart stuffed burger press |
| CSMA | Colorado Student Media Association |
| CSMC | Critical Studies in Media Communication |
| CSNA | Convenience Stores News Agents |
| CSNN | Cowboy State News Network (radio network; Wyoming) |
| CSO | Color Separation Overlay |
| CST | Commission Supérieure Technique du Cinéma Française |
| CTFP | Chattanooga Times Free Press |
| CTFSF | Community Television Foundation of South Florida, Inc. |
| CTML | Cognitive Theory of Multimedia Learning |
| CTN | Communications Technology News |
| CTP | Creative Teaching Press |
| CTS | Clear To Send |
| CTT | Columbia TriStar Television |
| CTVNN | Canadian TeleVision News Network |
| CVBS | Composite Video Baseband Signal |
| CWIP | Composing with Images Press |
| CWN | Cartoon World News |