| MMRC | Army Missile Materiel Readiness Command 
| Others |
| MMRC | Machinist's Mate (refrigeration Mechanic) Chief Petty Officer
| Others |
| MMRC | Mahanakorn Microelectronics Research Centre
| Others |
| MMRC | Marin Medical Reserve Corps
| Others |
| MMRC | Maryland Mentoring Resource Center
| Others |
| MMRC | Materials Modeling Research Cluster
| Others |
| MMRC | Mature Market Resource Center
| Others |
| MMRC | Meczka Marketing Research and Consulting
| Others |
| MMRC | Medical Marijuana Resource Center
| Others |
| MMRC | MediSphere Medical Research Center
| Others |
| MMRC | Mensuration and Modelling Research Consortium
| Others |
| MMRC | Microelectronics Marketing Research Council
| Others |
| MMRC | Mini Mermaid Running Club
| Others |
| MMRC | Minnesota Minority Recruitment Conference
| Others |
| MMRC | Mississippi Methodist Rehabilitation Center
| Others |
| MMRC | Modified Medical Research Council
| Others |
| MMRC | Molecular Materials Research Center
| Others |
| MMRC | Multi-disciplinary Materials Research Center
| Others |
| MMRC | Multicultural and Migration Research Centre
| Others |
| MMRC | Multiple Myeloma Research Consortium
| Others |
| MMRC | Mumbai Metro Rail Corporation
| Others |