| Acronym | Definition |
|---|
| MAST | Multimission Archive At STSCI |
| MAST | Michigan Alcoholism Screening Test |
| MAST | Manitoba Association of School Trustees |
| MAST | Military Anti-Shock Trousers |
| MAST | Motif Alignment and Search Tool |
| MAST | Medical Anti-Shock Trousers |
| MAST | Metropolitan Ambulance Services Trust |
| MAST | Multi-Agency Support Team (UK) |
| MAST | Massachusetts Association of Science Teachers |
| MAST | Maritime and Science Technology High School |
| MAST | Mega Ampere Spherical Tokamak (UK; nuclear fusion experiment) |
| MAST | Mobile Ashore Support Terminal |
| MAST | Membrane Applied Science and Technology Center (University of Colorado at Boulder and University of Cincinnati) |
| MAST | Multi-Application Sonar Trainer |
| MAST | Media Arts, Science, and Technology |
| MAST | Military Assistance to Safety & Traffic (US Army MEDEVAC civilian assistance) |
| MAST | Marine and Science Technology |
| MAST | Metro All-Star Scratch Tour |
| MAST | Magnetic Annular Shock Tube |
| MAST | Maintenance Standardization Team |
| MAST | MILSTAR Advanced Satellite Terminal |
| MAST | Mission Avionics Systems Trainer |
| MAST | Modeling And Simulation Team |
| MAST | Major Airframe Static Test |
| MAST | Missile Automatic Supply Technique |
| MAST | Multi-Int Analysis Software Toolset |
| MAST | Meteorological Automated Sensors and Transceiver |
| MAST | MICAP Automated Status Tracking |
| MAST | Maritime Analysis Support Team (US Coast Guard) |
| MAST | Microcomputer Authoring System Trainer |
| MAST | Mobile Army Surgical Team |
| MAST | Maryland Advanced Speakers Toastmasters |
| MAST | Maintenance Standardisation Teams (Europe) |
| MAST | Monopulse Anti-Sidelobe Technique |
| MAST | Mobile Acoustic Spatial Target |
| MAST | Medical Augmentation Support Team |
| MAST | Madison Area Scratch Tour |
| MAST | Marine Atmosphere Science and Technology |
| MAST | Managed Auction Services of Texas (Spring, TX) |
| MAST | Maximum Allowable Stem Torque (ball valves) |
| MAST | Mathematics and Science Teacher (various schools) |
| MAST | Mean Annual Soil Temperature |
| MAST | Mandatory Alcohol Server Training (Washington state Liquor Control Board) |
| MAST | Management and Supervisory Training (program) |
| MAST | Marine Academy of Science and Technology |
| MAST | Marine Science and Technology |
| MAST | Maritime Archeology Survey Techniques |
| MAST | Mediterranean Association of Sustainable Tourism |