| Abbreviation | Definition |
|---|---|
| MA | Male Adult |
| MAAT | Multi Altitude Assault Transport |
| MABL | Minnesota Association of Black Lawyers |
| MAC | Middle Aged Cops |
| MACC | Malaysian Anti Corruption Commission |
| MACC | Malaysian Anti-Corruption Commission |
| MACC | Movement Against Corruption and Complicity |
| MACE | Massive Air Combat Event |
| MACE | Metro Area Crime Elimination |
| MACEO | Michigan Association of Code Enforcement Officers |
| MACIA | Midwest Association of Crime and Intelligence Analysts |
| MACL | Master of Advanced Corporation Law |
| MACN | Maritime Anti Corruption Network |
| MACRA | Medicare Access and CHIP Reauthorization Act |
| MACRS | Modified Accrual Car Recovery System |
| MAD | Middle-Aged Divorce |
| MADCP | Michigan Association of Drug Court Professionals |
| MADCP | Mississippi Association of Drug Court Professionals |
| MAF | Medium Assault Fighter |
| MAFIA | Mazzini Autorizza Furti Incendi Avvelenamenti |