| MMRA | Major Maintenance Reserve Account 
| Others |
| MMRA | Mcgill Mobile Robotics Architecture
| Others |
| MMRA | Medical Malpractice Reinsurance Association
| Others |
| MMRA | Melbourne Metro Rail Authority
| Others |
| MMRA | Mergeminiature Motorsports Racing Association
| Others |
| MMRA | Metal Mine Reclamation Act
| Others |
| MMRA | Michigan Midget Racing Association
| Others |
| MMRA | Mid Michigan Robotics Alliance
| Others |
| MMRA | Mid Michigan Roller Arena
| Others |
| MMRA | Miniature Motorsports Racing Association
| Others |
| MMRA | Minnesota Medical Records Act
| Others |
| MMRA | Minnesota Motorcycle Riders Association
| Others |
| MMRA | Miracle Mile Residential Association
| Others |
| MMRA | Mobile Marketing Research Association
| Others |
| MMRA | Multi Method Risk Analysis
| Others |
| MMRA | Myofascial meridian Release Acupuncture
| Others |