| Abbreviation | Definition |
|---|---|
| CMAJ | Canadian Medical Association Journal |
| CMCH | Center on Media and Child Health |
| CMG | Canadian Media Guild |
| CMG | Celebrity Management Group |
| CMG | China Media Group |
| CMG | Cox Media Group |
| CMNM | Colorado Mountain News Media |
| CMNN | Clothes Mentor Newport News |
| CMOS | Chicago Manual Of Style |
| CMOS | Complementary Metal-Oxide Semiconductor |
| CMR | Consolidated Media Reports |
| CMW | Come My Way |
| CNA | Channel News Asia |
| CNA | Convention News Agency |
| CNBC | Consumer News Business Channel |
| CNC | Centre Nationale de la Cinématographie |
| CNDL | Caribbean Newspaper Digital Library |
| CNE | Council of newspaper editor |
| CNEB | Complete News & Entertainment Broadcast |
| CNFS | Cyclic News File System |