| Abbreviation | Definition |
|---|---|
| MLT | MacPherson, Leslie, Tyerman, Barristers Solicitors |
| MLT | Marketing, Logistics, and Transportation |
| MLV | Major League Vacations |
| MLV | Moolgavkar, Lustbader, and Venzon |
| MLW | Montreal Locomotive Works |
| MLX | Molex |
| MLY | Merrill Lynch |
| MM | Malford Machinations |
| MM | Michigan Metrology |
| MM | Misch Metal |
| MM | Money Masters |
| MMA | Marketing Management Analytics |
| MMA | MIDI Manufacturers Association |
| MMAI | Michigan Mechanical Abatement, Incorporated |
| MMAL | McFarland Marceau Architects Ltd |
| MMBH | Merken- en Modellenbureau Holland |
| MMBT | Mat McLachlan Battlefield Tours |
| MMC | Massachusetts Marketing Center |
| MMC | Mining and Metallurgical Company |
| MMC | Minowitz Manufacturing Company |