| Abbreviation | Definition |
|---|---|
| MCYM | Military Community Youth Ministry |
| MD | Maintenance Diagnostic |
| MD | Maniacal Dictator |
| MD | Marshalled Deployability |
| MD | Material Development |
| MD | McDonnell Douglas |
| MD | Medical Discharge |
| MD | Messy Desk |
| MD | Military Drill |
| MD | Mini-Disk |
| MD | Missile Defense |
| MD | Mobilization/Deployment |
| MD | More Death |
| MD | Most Dangerous |
| MD | Multi Directional |
| MDA | Magen David Adom (Israeli Equivalent of The Red Cross) |
| MDA | Maritime Domain Awareness |
| MDA | Measure of Directional Accuracy |
| MDA | Medical Defence Australia |
| MDA | Medical Digital Assistant |