| Abbreviation | Definition |
|---|---|
| MUI | Magical User Interface |
| MUI | Micro User Interface |
| MUI | Multi User Interface |
| MUI | MY User Interface |
| MULTICS | MULTiplexed Information and Computing Service |
| MUMPS | Massachusetts General Hospital Utility Multi- Programming System |
| MUMPS | Massachusetts General Hospital Utility Multi-Programming System |
| MUMPS | Multi- User Multi- Programming System |
| MUNG | Modify Until No Good |
| MUOS | Multi User Operating System |
| MUP | Multiple UNC Provider |
| MuPAD | Multi Processing Algebra Data |
| MUSE | Memory Upgrade And System Expansion |
| MUSE | Multi User Simulated Environment |
| MUTE | Multi User Textual Environment |
| MV | Mnemonic Visual |
| MV | Multi View |
| MVC | Multiple Variant Classes |
| MVK | Music Video Keyboard |
| MVL | Master Volume License |