| CMSI | Center for Minority Serving Institutions 
| Others |
| CMSI | Central Mediterranean Sea Initiative
| Others |
| CMSI | Checkout/control and Monitor Sub-system Interface
| Others |
| CMSI | Chicago Math and Science Initiative
| Others |
| CMSI | China Maritime Studies Institute
| Others |
| CMSI | Cisco Media Services Interface
| Others |
| CMSI | Coastal and Marine Sciences Institute
| Others |
| CMSI | Coastal Marine Sciences Institute
| Others |
| CMSI | Community Management Solutions Inc
| Others |
| CMSI | Conservation Management System International
| Others |
| CMSI | Contract Management Services Incorporated
| Others |
| CMSI | Credit Management Solutions Inc
| Others |