| MTL | MAC Transaction Layer 
| Others |
| MTL | Mail Traffic Limiter
| Others |
| MTL | Main Transfer Line
| Others |
| MTL | Main Transmission Line
| Others |
| MTL | Maitland, New South Wales, Australia
| Others |
| MTL | Malawi Telecommunications Limited
| Others |
| MTL | Maltese Lira
| Others |
| MTL | Manage Train And Learn
| Others |
| MTL | Manual Transmission Liquid
| Others |
| MTL | Manual Transmission Lube
| Others |
| MTL | Manual Transmission Lubricant
| Others |
| MTL | Manufacturers Technical Literature
| Others |
| MTL | Manufacturing Team Leader
| Others |
| MTL | Manycore Testing Lab
| Others |
| MTL | Maritime Tunisian Line
| Others |
| MTL | Mass Transfer Limited
| Others |
| MTL | Master of Teaching and Learning
| Others |
| MTL | Master Task List
| Others |
| MTL | Master Testing List
| Others |
| MTL | Master Textbook List
| Others |
| MTL | Material Library
| Others |
| MTL | Material Technology Laboratory
| Others |
| MTL | Material Technology Logistics
| Others |
| MTL | Materials Technology Laboratory
| Others |
| MTL | Materials Toolkit
| Others |
| MTL | Matrix Template Library
| Others |
| MTL | Maximum Tongue Load
| Others |
| MTL | Maximum Towing Limit
| Others |
| MTL | Mean Tidal Level
| Others |
| MTL | Mean Tide Level
| Others |
| MTL | Medial Temporal Lobe
| Others |
| MTL | Median Telomere Length
| Others |
| MTL | Medium Term Loan
| Others |
| MTL | Meet Talk and Learn
| Others |
| MTL | Merged Transistor Logic
| Others |
| MTL | Mesh Twin Learning
| Others |
| MTL | Message Transfer Layer
| Others |
| MTL | Metallic
| Others |
| MTL | Microprocessor Technology Lab
| Others |
| MTL | Microsystems Technology Laboratories
| Others |
| MTL | Mid Tide Level
| Others |
| MTL | Minimum Trigger Level
| Others |
| MTL | Mission Tasking Letter
| Others |
| MTL | Mission Tobacco Lounge
| Others |
| MTL | Mobile Technology Lab
| Others |
| MTL | Modular Temporal Logic
| Others |
| MTL | Mon Trea L
| Others |
| MTL | Monads Transformers Library
| Others |
| MTL | Montreal
| Others |
| MTL | More To Life
| Others |
| MTL | More To Love
| Others |
| MTL | Motor Traction Limited
| Others |
| MTL | Motorcycle Transmission Lubricant
| Others |
| MTL | Mouth To Lung
| Others |
| MTL | Moving Target Locator
| Others |
| MTL | Much Too Loud
| Others |
| MTL | Multi Terrain Loader
| Others |
| MTL | Multiplayer Traffic Library
| Others |
| MTL | Multiple Top Level
| Others |
| MTL | Must Tarp Load
| Others |
| MTL | The Microsystems Technology Laboratories
| Others |
| MTL | Wavefront
| Others |