| Abbreviation | Definition |
|---|---|
| MMA | Malaysian Medical Association |
| MMA | Persatuan Perubatan Malaysia |
| MMAS | Matt Morgan Appreciation Society |
| MMBS | Maitland Mutual Building Society |
| MMBS | Melton Mowbray Building Society |
| MMBS | Mutual Model Boat Society |
| MMCS | Mauritius Marine Conservation Society |
| MMGS | Maine Mineral and Geological Society |
| MMGS | Maine Mineralogical and Geological Society |
| MMGS | Mid Michigan Genealogical Society |
| MMHS | Manchester Military History Society |
| MMMS | Merry Marvel Marching Society |
| MMMS | Michigan Microscopy and Microanalysis Society |
| MMMS | Michigan Microscopy Microanalysis Society |
| MMMS | Midwest Microscopy and Microanalysis Society |
| MMO | Chamber of Mining Engineers of Turkey |
| MMO | Maden Mhendisleri Odas |
| MMO | Maden Mühendisleri Odas1 |
| MMO | Maden Mühendisleri Odasi |
| MMS | Manchester Medical Society |