| Abbreviation | Definition |
|---|---|
| MTG | Making The Grade |
| MTK | Microsoft Tool Kit |
| MTK | Morph ToolKit |
| MTL | Manage Train And Learn |
| MTNC | Multi Timeslots Network Coding |
| MTPC | Multi Tones Phase Coding |
| MTPW | Mediatools Powerweb |
| MTS | Millenium Theatre System |
| MTTB | Mean Time To Beer |
| MTTD | Mean Time To Detect |
| MTTF | Mean Time To Failure |
| MTTR | Mean Time to Restoration |
| MTTR | Mean Time To Restore |
| MU | Maintenance Update |
| MUD | Multi-User Dimension |
| MUDE | Multi-User Development Environment |
| MUF | Multi-User Forth |
| MUG | Microsoft User Group |
| MUM | Microsoft Update Manifest |
| MUMPS | Massachusetts Utility Multi programming System |