| Abbreviation | Definition |
|---|---|
| CMGA | Coastal Master Gardener Association |
| CMGA | Connecticut Master Gardener Association |
| CMGA | Czech mountain guide association |
| CMHA | Canadian Mental Health Association |
| CMHA | Central Michigan Horsemans Association |
| CMHA | Chinese Mental Health Association |
| CMHCA | Colorado Mental Health Counselors Association |
| CMIA | Climate Markets and Investment Association |
| CMLA | Canadian Maritime Law Association |
| CMMA | Central Michigan Manufacturers Association |
| CMMA | Central Minnesota Manufacturers Association |
| CMMA | Chicago Midwest Meat Association |
| CMNA | Canadian Malayalee Nurses Association |
| CMNA | Cory Merrill Neighborhood Association |
| CMNA | Cypress Mill Neighborhood Association |
| CMOA | California Mounted Officers Association |
| CMOE | Council on Manual Osteopathy Education |
| CMOEB | Canadian Manual Osteopathy Examining Board |
| CMPA | Canadian Marine Pilots Association |
| CMPA | Canadian Media Producers Association |