| Acronym | Definition |
|---|
| MMT | Million Metric Tons |
| MMT | Médecins Maîtres-Toile |
| MMT | Mobile Money Transfer (payment service offered by cellular operators) |
| MMT | Multiple Mirror Telescope |
| MMT | Mission Management Team (International Space Station) |
| MMT | Montmorillonite (phyllosilicate) |
| MMT | Modern Monetary Theory (economics) |
| MMT | Multi-Material Technology (safety glass) |
| MMT | Machine à Mesurer Tridimensionnelle (French: Coordinate Measuring Machine; engineering) |
| MMT | Multiaccess, Mobility, and Teletraffic for Wireless Communications (Conference) |
| MMT | Molten Metal Technology |
| MMT | Methyl Cyclopentadienyl Manganese Tricarbonyl (CAS Number 12108-13-3) |
| MMT | Mobile Medical Team |
| MMT | Multimedia Terminal |
| MMT | Mobile Maintenance Team |
| MMT | Military Training Technology (magazine; Kerrigan Media International, Inc.) |
| MMT | Mobile Measurement Technology (IBM) |
| MMT | Master Mathematics Teacher |
| MMT | Multi Modal Transportation |
| MMT | Mission Mountain Railroad |
| MMT | Mode-Matching Technique |
| MMT | Mean Maintenance Time |
| MMT | Monorail Malaysia Technology Sdn Bhd |
| MMT | Maritime Metro Transit |
| MMT | Manufacturing Methods & Technology |
| MMT | Make Me Taller (cosmetic leg lengthening community forum) |
| MMT | Material Movement Ticket |
| MMT | Miniaturized Munition Technology |
| MMT | Microcephaly, Mental Retardation, and Tracheoesophageal Fistula Syndrome |
| MMT | Multiple Main Track (railroads) |
| MMT | Multicast Mapping Table |
| MMT | Morse Mission Trainer |
| MMT | Missile Maintenance Technician |
| MMT | Manure Management Train (agriculture) |
| MMT | Miniature Moving Target |
| MMT | Master Message Terminal |
| MMT | Minimum Masking Threshold |
| MMT | Man-Miles of Travel |
| MMT | Moment Matching Technique |
| MMT | Mini Mobile Target |
| MMT | Multi-media Multi-party Teleconferencing |
| MMT | Mission Maintenance Technician |
| MMT | Modular Test Toolkit |
| MMT | Multiple Multi-Pole Technique |
| MMT | Minimum Matching Time |
| MMT | Mixture Magnesium Trisilicate (antacid) |
| MMT | Megasite Management Toolsuite (software) |
| MMT | Mood Management Theory (Dolf Zillman) |
| MMT | Module Management Team (various organizations) |
| MMT | Macchine Movimento Terra (Italian: Construction Equipment) |
| MMT | Malignant Mesenchymal Tumor |
| MMT | Materiel Management Team |
| MMT | Manual Muscle Test |
| MMT | Medisch Mobiel Team (Dutch: Mobile Medical Team) |
| MMT | Monthly Mean Temperature |
| MMT | Meridian Medical Technologies, Inc. |
| MMT | Meyer Memorial Trust |
| MMT | Medial Meniscus Tear (injury) |
| MMT | Measurement and Management Technology (IBM) |
| MMT | Magical Mystery Tour (Beatles album) |
| MMT | Marine Air Traffic Control Mobile Team (USMC) |
| MMT | Merchant Marine Technical (US Coast Guard division) |
| MMT | Methadone Maintenance Treatment |
| MMT | Measurement Modeling Technology |