| Abbreviation | Definition |
|---|---|
| CMMA | Canadian Marine Manufacturers Association |
| CMMA | Canadian Micro Mineral Association |
| CMMA | Communications Media Management Association |
| CMMA | Contact Management Marketing Association |
| CMMND | Centre for Management and Mitigationof Natural Disasters |
| CMO | College of Midwives of Ontario |
| CMOS | Canadian Meteorological and Oceanographic Society |
| CMPPA | Central Mississippi Professional Photographers Association |
| CMS | Chinese Mathematical Society |
| CMS | Compensation Management Specialist |
| CMSA | Cowboy Mounted Shooting Association |
| CMSD | Compensation Management and Services Division |
| CMSD | Compensation Management and Services Division |
| CMSN | Canadian Moving and Storage Network |
| CMTA | California Manufacturers Technology Association |
| CMTA | California Municipal Treasurers Association |
| CMTA | Cato Manor Taxi Association |
| CMTA | Charleston Music Teachers Association |
| CMTA | Christian Music Trade Association |
| CNATS | Canadian Nurses Association Testing Service |