| Acronym | Definition |
|---|
| MMS | Multimedia Messaging Service |
| MMS | Minerals Management Service |
| MMS | Miracle Mineral Supplement (health product) |
| MMS | Microsoft Management Summit |
| MMS | Massachusetts Medical Society |
| MMS | Minerals and Metals Sector (NRCan) |
| MMS | Majestic Mountain Sage |
| MMS | Multimedia Messaging System |
| MMS | Mast-Mounted Sight (US DoD) |
| MMS | Microsoft Media Server |
| MMS | Miracle Mineral Solution (health product) |
| MMS | Modern Machine Shop (various organizations) |
| MMS | Media Marketing Services (various organizations) |
| MMS | Microsoft Metadirectory Services |
| MMS | Memorial Middle School (various locations) |
| MMS | Mini Medical School (various schools) |
| MMS | Mobile Marketing Solutions (various companies) |
| MMS | Memory Management System |
| MMS | Multi Media Services |
| MMS | Modem Management System |
| MMS | Motion Math Script |
| MMS | Multi Media Stick |
| MMS | Main Memory Status |
| MMS | Motorsport Mobility System |
| MMS | Microsoft Mediaplayer Stream |
| MMS | Multimedia Message System |
| MMS | Multi Media System |
| MMS | Mpeg Menu System |
| MMS | Maclay Murray & Spens (law firm; UK) |
| MMS | Maintenance Management System |
| MMS | Microsoft Media Streaming (computer protocol) |
| MMS | Milton Middle School (Milton, WI) |
| MMS | Mobile Multimedia Service (computing) |
| MMS | Mount Madonna School (Watsonville, CA) |
| MMS | Maximum Message Size |
| MMS | Multi-Monitor Series (Matrox) |
| MMS | Manufacturing Message Specification |
| MMS | Merchandise Management System (JDA Software Group Inc.) |
| MMS | Motor Minesweeper (vessel; UK) |
| MMS | Money Market Services |
| MMS | Mobility Managed Services |
| MMS | Murdock Middle School (Port Charlotte, FL) |
| MMS | Midday Meal Scheme (India) |
| MMS | Matra Marconi Space (UK) |
| MMS | Murphy Middle School (Murphy, TX) |
| MMS | Memory Management System (Bellcore) |
| MMS | Material Management System |
| MMS | Mannheim Middle School (Melrose Park, IL) |
| MMS | Modern Music School |
| MMS | Medical Mission Sisters |
| MMS | Membership Management System (Quincy, CA) |
| MMS | My Music Station |
| MMS | Malaysian Meteorological Service |
| MMS | Master of Medical Science |
| MMS | Module Management System |
| MMS | Moment Magnitude Scale (seismology) |
| MMS | Multiscale Modeling Simulation (journal) |
| MMS | My Media System (software) |
| MMS | Modified Mallampati Score (sleep apnea) |
| MMS | Master Merchant Systems (software; various locations) |
| MMS | Mediterranean Microwave Symposium |
| MMS | Mandatory Minimum Sentence |
| MMS | Media Monitoring Services |
| MMS | Munitions Maintenance Squadron |
| MMS | Magnetospheric Multi Scale |
| MMS | Methylmethanesulfonate |
| MMS | Meteorological Measuring Set |
| MMS | Mobilität und Mobile Informationssysteme |
| MMS | Messaging Management System |
| MMS | Military Message System |
| MMS | Multimission Modular Spacecraft |
| MMS | Multi-Mission Modular Spacecraft (US NASA) |
| MMS | Marlboro Middle School (New Jersey) |
| MMS | Medication Management System |
| MMS | Meteorological Measurement System |
| MMS | Mitsui Mining and Smelting (Japan) |
| MMS | Manifest Mailing System (US postal service) |
| MMS | Mission Management System |
| MMS | Mastermind Shield (Tibia video game) |
| MMS | Mail Management System |
| MMS | Make, Model, Series |
| MMS | Morphable Memory System (computer architecture) |
| MMS | Modular Measurement System (Hewlett Packard) |
| MMS | Mystic Management Systems, Inc |
| MMS | Modular Mining System |
| MMS | Minnesota Mycological Society (St Paul, Minnesota) |
| MMS | Manufacturing Message Service (ISO) |
| MMS | Marconi Medical Systems (Philips Medical Systems) |
| MMS | Muth Mirror Systems |
| MMS | Machine Monitoring System |
| MMS | Material Management Services |
| MMS | Millennium Middle School (Sandford, Florida) |
| MMS | Metropolitan Mountaineering Society (Philippines) |
| MMS | Modified Mercalli Scale (geophysics) |
| MMS | Montshire Museum of Science (Vermont) |
| MMS | Motorsport Marshalling Services (Canadian Marshalling Group) |
| MMS | Metal-to-Metal Seal |
| MMS | Multilevel Mail Server |
| MMS | Moldflow Manufacturing Solutions (injection molding industry) |
| MMS | Module Making System (VMS) |
| MMS | Marine Mammal Systems (US Navy) |
| MMS | Moody Middle School (Richmond, Virginia) |
| MMS | Marine Meteorological Services |
| MMS | Middelbare Meisjes School (Dutch school) |
| MMS | Medicus Mundi Switzerland |
| MMS | Mitochondrial Medicine Society |
| MMS | Mathematical Modelling and Simulation |
| MMS | Medevac Mission Sensor (US Army) |
| MMS | McKnight Middle School |
| MMS | Mechanized Mathematics Systems |
| MMS | Machinist Mate, Shop Mechanic (US Navy) |
| MMS | My Material Season (band) |
| MMS | Morgan Molten Metal System |
| MMS | Malicious Mother Syndrome |
| MMS | Master in Management Studies |
| MMS | Multimedia Switch |
| MMS | Microwave Motion Sensor |
| MMS | Maneuver and Mobility Support |
| MMS | Metal Melting Summit (Zadar, Croatia heavy metal festival) |
| MMS | MegaMan Soccer (video game) |
| MMS | Master Milestone Schedule |
| MMS | Materiel Maintenance Squadron |
| MMS | Multimission Spacecraft |
| MMS | Medical Materiel Sets |
| MMS | Material Monitoring System |
| MMS | Mixed Model Scheduler (scheduling software) |
| MMS | Modem Management System (Sprint) |
| MMS | Mass Mailing System |
| MMS | Motion Measurement System |
| MMS | Maxspeed Management Software (Maxspeed) |
| MMS | Multi-Mission Ship |
| MMS | Manufacturing Monitoring System |
| MMS | More Magic Solutions, Inc |
| MMS | Mode Management Service |
| MMS | Magnetic Multiscale Mission |
| MMS | Mast Motion Sensor |
| MMS | Multipoint Command Mode-Symmetrize |
| MMS | Modulation-Mode Switching |
| MMS | Microsoft Management System |
| MMS | Material Management Standard System |
| MMS | Mission Module System |
| MMS | Mass Memory Superchip |
| MMS | Machinery Monitoring & Protection System |
| MMS | Milwood Middle School |
| MMS | Mine Marking System |
| MMS | Mission Monitoring System |
| MMS | Minimum Manning Strength |
| MMS | Meridian Motor Speedway |
| MMS | Modular Multimission Spacecraft (NASA) |
| MMS | Master of Marketing Science |
| MMS | Message Machine Server |
| MMS | Monolithic Microwave Systems |
| MMS | Mid Market Solutions Ltd. (UK) |
| MMS | Middle Mobile Suit (Gundam) |
| MMS | Middlebranch Middle School (Canton, OH) |
| MMS | Mine and Munitions System |
| MMS | Missionary Management System |
| MMS | Megasite Management System (brownfield revitalization) |
| MMS | Multi-Purpose Multi-Processor System |
| MMS | Michigan Maintenance Supply (Warren, MI) |
| MMS | Monaco Motor Show (automobile show; Monaco) |