| Acronym | Definition |
|---|
| CMSC | Changan Mazda Motor Sales Co. |
| CMSC | Consortium of Multiple Sclerosis Centers |
| CMSC | Collège Mont-Sacré-Coeur (French: Mount Sacred Heart College; Canada) |
| CMSC | Construction and Mining Specialist Consultants (South Africa) |
| CMSC | Chicago Metropolitan Ski Council |
| CMSC | Comité de la Majorité Silencieuse Corse (French: Corsica Silent Majority Committee) |
| CMSC | Certified Medical Staff Coordinator |
| CMSC | Common Motor-Starter Controller (aviation) |
| CMSC | Corps of Military Staff Clerks (Canada) |
| CMSC | Computer Memory Security Check |
| CMSC | California Mine and Safety Code |
| CMSC | Chamber Music Society of Colombo (Sri Lanka) |
| CMSC | Communication Mode Selector Control |
| CMSC | Chicago Medical Student Council (University of Illinois College of Medicine) |