| Abbreviation | Definition |
|---|---|
| CRSQ | Creation Research Society Quarterly |
| CRT | Copyright Royalty Tribunal |
| CRTC | Canadian Radio-television and Telecommunications Commission (Conseil de la Radiodiffusion et des T??l??communications Canadiennes) |
| CRV | Controlled Remote Viewing |
| CRW | Colorado Romance Writers |
| CS | Cable Set |
| CS | City Sport |
| CSA | Cambridge Scientific Abstracts |
| CSAB | Content Selection and Advisory Board |
| CSAF | Christian Science Article Finder |
| CSC | Continental Sports Channel |
| CSCA | Conference of State Communications Agencies |
| CSE | Council of Science Editors |
| CSF | Casting Success Factor |
| CSI | Compact Source Iodide |
| CSMO | Chief Social Media Officer |
| CSMS | C Specific Media Support |
| CSMT | Chicago School of Media Theory |
| CSMT | Clearinghouse for Specialized Media and Technology |
| CSMT | Clearinghouse for Specialized Media and Translations |