| Abbreviation | Definition |
|---|---|
| MCZ | Museum of Comparative Zoology |
| MD | Mathematical Department |
| MD | Music Director |
| MDG | Museum Development Grant |
| MDI | Management Development Institute, Gurgaon |
| MDJ | Michael D. Jones, Jr. Memorial Scholarship Fund |
| MDM | Michigan Dartmouth Mountaintop Observatory |
| MDN | Medical Device Network |
| MDR | Medical Doctors Research |
| MDSA | McGill Medical and Dental Student Association |
| MDSS | Melbourne Dental Student Society |
| MDU | Maharishi Dayanand University |
| MDU | Maharshi Dayanand University |
| MDUH | Mount Druitt University Hub |
| ME | Mechanical Engineering |
| MEAA | Milwaukee Educational Assistants' Association |
| MEALAC | Middle Eastern And Asian Languages And Cultures |
| MEAS | Marine, Earth, and Atmospheric Sciences |
| MEC | Medical Education Center |
| MECA | Manufacturing Engineering Construction And Automotive |