| Abbreviation | Definition |
|---|---|
| ML | Metal Lathe |
| MLB | My Little Basket |
| MLC | Micro Location Counter |
| MLF | Mini Lead Frame |
| MLFP | Medium-Lived Fission Products |
| MLP | My Little Pony |
| MLSF | Multi-Lobe Semi-Floating |
| MLU | Mirror Lock Up |
| MLW | Main Lift Web |
| MM | Master Mason |
| MM | Mighty Mini |
| MM | Mille Milglia |
| MM | Motorcycle Mustang |
| MMDA | Multi-Mode Digital Avionics |
| MME | Multi-Mode Engine |
| MMF | Moisture Moving Fabric |
| MMH | Modern Materials Handling |
| MMID | Multipurpose Multiaxial Isokinetic Dynamometer |
| MMMF | Man Made Mineral Fibre |
| MMU | Mechanical Mechanism Utility |