| Abbreviation | Definition |
|---|---|
| ML | Medal Lectures |
| MM | Medalla Militar |
| MMB | More, Most, and Best |
| MMC | Member Magic Circle |
| MMC | Michigan Manufacturers Cup |
| MMPC | MI Mathematics Prize Competition |
| MMPC | Michigan Math Prize Competition |
| MMPC | Michigan Mathematics Prize Competition |
| MN | Medalla Naval |
| MNM | Merchant Navy Medal |
| MNZM | Member of the New Zealand order of Merit |
| MOH | Medal of Honor Aircraft |
| MOHA | Medal Of Honor Airborne |
| MOHA | Medal Of Honor Allied |
| MOHH | Medal Of Honor Heroes |
| MOHS | Medal Of Honor Spearhead |
| MOHW | Medal Of Honor Warfighter |
| MOL | Medal Of Laundry |
| MOLP | Magic Oxygen Literary Prize |
| MOM | Man Of the Match |