| MMCS | Ciudad Juarez Abraham Gonzalez, Mexico 
| Others |
| MMCS | International Conference on Multi-Media Computing and Systems
| Others |
| MMCS | Machinist's Mate Senior Chief Petty Officer
| Others |
| MMCS | Magneti Marelli Checkstar
| Others |
| MMCS | Maltrait Memorial Catholic School
| Others |
| MMCS | Management and Medical Consulting Services
| Others |
| MMCS | Management module control station
| Others |
| MMCS | Manchester Medical Careers Society
| Others |
| MMCS | Marshall Medical Centers South
| Others |
| MMCS | Mass Memory Control Subsystem
| Others |
| MMCS | Mathematical Modelling of Complex Systems
| Others |
| MMCS | Mauritius Marine Conservation Society
| Others |
| MMCS | Medicaid Managed Care Services
| Others |
| MMCS | Medicaid Managed Care System
| Others |
| MMCS | Midplane Management and Control Service
| Others |
| MMCS | Midplane Monitoring and Control System
| Others |
| MMCS | Midsouth MX Championship Series
| Others |
| MMCS | Milwaukee Modern Chinese School
| Others |
| MMCS | Mitsubishi Multi Communication System
| Others |
| MMCS | Modified Maltreatment Classification System
| Others |
| MMCS | Money Maker Consignment Systems
| Others |
| MMCS | Moore Montessori Community School
| Others |
| MMCS | Mount Moriah Christian School
| Others |
| MMCS | Mountain Mahogany Community School
| Others |
| MMCS | Multi Media Computing Solutions
| Others |
| MMCS | Multi Microgrid Control Systems
| Others |
| MMCS | Multi Module Charging Strategy
| Others |
| MMCS | Multi Monitoring and Control Software
| Others |
| MMCS | Senior Chief Machinist's Mate
| Others |