| Abbreviation | Definition |
|---|---|
| MTO | Maximum Time Out |
| MTO | Master Timing Oscillator |
| MTO | Magnetic Tape Operator |
| MTOF | Mass Time Of Flight |
| MTOGW | Maximum Takeoff Gross Weight |
| MTOW | Maximum Takeoff Weight |
| MTP | Media Transfer Protocol |
| MTP | Mission Test Plan |
| MTP | Master Test Plan |
| MTP | Manufacturing Technical Procedure |
| MTP | Medical Termination of Pregnancy |
| MTPA | Million Tonnes Per Annum |
| MTPDP | Medium-Term Philippine Development Plan |
| MTPW | Master Of Technical And Professional Writing |
| MTR | Magnetic Tape Recorder |
| MTRR | Memory Type Range Register |
| MTS | Multichannel Television Sound |
| MTS | Member of the Technical Staff |
| MTS | Mission Team Specialist |
| MTS | Mission Training School |
| MTS | Master Timing System |
| MTS | Magnetic Tape System |
| MTS | Metric Time System |
| MTTF | Manhattan Traffic Task Force |
| MTU | Maximum Transmission Unit |
| MTU | Mobile Tactical Unit |
| MTVC | Manual Thrust Vector Control |
| MTX | Methotrexate (anticancer drug) |
| MU | Mounted Unit |
| MUA | Maximum Usable Altitude |
| MUA | Material Usage Agreement |
| MUD | Matched Urelated Donor - for bone marrow transplant |
| MUD | Matched Unrelated Donor - For Bone Marrow Transplant |
| MUE | Multi- User Equipment |
| MUF | Maximum Usable Frequency |
| MUFS | Multi-User File System |
| MUFW | Mutant fish in Fresh Water |
| MUGA | Multiple Gated Acquisition |
| MUGB | MethylUmbelliferyl GuanidinoBenzoate |
| MUGEX | Multigated Blood Pool Image During Exercise |
| MUGR | Multigated Blood Pool Image At Rest |
| MUI | Multiplexer |
| MUL | Maruti Udyog Limited |
| MUL | Multiply, Unsigned |
| MUL | Muslim League Kerala State Committee |
| MULE | Multi-Use Lightweight Equipment |
| MUM | Mass Memory Unit Manager |
| MUMS | Multiple Use Marc System |
| MUR | Manpower Utilization Report |
| MURR | University of Missouri Research Reactor |