| Abbreviation | Definition |
|---|---|
| MLHU | Middlesex-London Health Unit |
| MLS | Municipal Lighting System |
| MMA | Maine Municipal Association |
| MMA | Massachusetts Municipal |
| MMA | Massachusetts Municipal Association |
| MMA | Municipal Market Advisors |
| MMA | Municipal Market Analytics |
| MMAH | Ministry of Municipal Affairs Housing |
| MMBA | Minnesota Municipal Beverage Association |
| MMCA | Maryland Municipal Clerks Association |
| MMCD | Master Municipal Construction Document |
| MMCG | Michigan Municipal Cooperative Group |
| MME | Michigan Municipal Executives |
| MME | Municipal Maintenance Equipment |
| MMEA | Michigan Municipal Electric Association |
| MMED | Mansfield Municipal Electric Department |
| MMFT | Municipal Motor Fuel Tax |
| MMHG | Mayflower Municipal Health Group |
| MML | Mississippi Municipal League |
| MML | Missouri Municipal League |