| CMCCC | California Mathematics Council Community Colleges 
| Others |
| CMCCC | Canadian Man Computer Communications Conference
| Others |
| CMCCC | Chemistry and Manufacturing Controls Coordinating Committee
| Others |
| CMCCC | Chemistry and Manufacturing Controls Coordinating Committee (CDER)
| Others |
| CMCCC | Chemistry Manufacturing and Controls Coordinating Committee
| Others |
| CMCCC | Christ Memorial Child Care Center
| Others |
| CMCCC | Community Mediation Center of Calvert County
| Others |
| CMCCC | Creede Mineral Co Chamber of Commerce
| Others |