| Abbreviation | Definition |
|---|---|
| MARTHA | Mobile Autonomous Robots for Transportation and Handling Applications |
| MARV | Mammoth Armed Reclamation Vehicle |
| MARV | Mid-sized Autonomous Research Vehicle |
| MARV | Miniature Autonomous Robotic Vehicle |
| MARVIN | Mobile Autonomous Robotic Vehicle for Indoor Navigation |
| MAS | Chennai central Railway Station at India MAS-Railway Station code of Chennai (MAdraS) |
| MAS | Malaysian Airline System |
| MASPS | Minimum Aviation System Performance Standards |
| MAT | Marine Aviation Transport |
| MAT | Morehead Area Transit |
| MATA | McKinney Avenue Transit Authority |
| MATA | Memphis Area Transit Authority |
| MATC | Mid America Transportation Center |
| MATCU | Military Air Traffic Coordinating Unit |
| MATIS | Multimodal Airline Travel Information System |
| MATT | Mapping and Analysis Tool for Transportation |
| MAV | Mars Autonomous Vehicle |
| MAV | Multi Activity Vehicle |
| MAVIS | Mental Awareness Vehicle and Information Service |
| MAVIS | Mobility Advice And Vehicle Information Service |