| CMSC | Calcutta Motor Sports Club 
| Others |
| CMSC | Center for Materials and Sensor Characterization
| Others |
| CMSC | Center for Mindful Self Compassion
| Others |
| CMSC | Central Mass Safety Council
| Others |
| CMSC | Certified Medical Staff Coordinator
| Others |
| CMSC | Ceylon Motor Sports Club
| Others |
| CMSC | Chamber Music Society of Colombo
| Others |
| CMSC | Changan Mazda Motor Sales Corporation
| Others |
| CMSC | Chicago Medical Student Council
| Others |
| CMSC | Chicago Metropolitan Ski Council
| Others |
| CMSC | Chittagong Model School and College
| Others |
| CMSC | Classic Marques Speed Challenge
| Others |
| CMSC | Cleveland Metro Ski Council
| Others |
| CMSC | Cleveland Metropolitan Ski Council
| Others |
| CMSC | Club Motor Sport Championship
| Others |
| CMSC | Columbia Music Scholarship Conference
| Others |
| CMSC | Common Motor Start Controller
| Others |
| CMSC | Composite Materials and Structures Center
| Others |
| CMSC | Composites Manufacturing and Simulation Center
| Others |
| CMSC | Consortium of Multiple Sclerosis Centers
| Others |
| CMSC | Coordinate Metrology Society Conference
| Others |
| CMSC | Coordinate Metrology Systems Conference
| Others |
| CMSC | Customer Manufacturing Solution Center
| Others |