| Abbreviation | Definition |
|---|---|
| MGLN | Magical Girl Lyrical Nanoha |
| MGM | Metro Goldwyn Meyer |
| MGM | More Godless Movies |
| MGN | Micro Gamers News |
| MHP | Multimedia Home Platform |
| MHSM | Mental Health and Social Media |
| MHSM | Mental Health Social Media |
| MHW | Mental Health Weekly |
| MI | Michigan Indoors |
| MI | Mission Impossible |
| MI | Moving Image |
| MIAP | Moving Image Archiving and Preservation |
| MIB | Man In Black |
| MIB | Men In Black |
| MIC | Movie Item Collection |
| MICS | Multiple Indicator Cluster Surveys |
| MIDAS | Multimedia Information Demonstration And Support |
| MIET | Media in Education Trust |
| MIL | Monster In Law |
| MIMC | Massachusetts Interactive Media Council |