| Acronym | Definition |
|---|
| MDA | Muscular Dystrophy Association |
| MDA | Monochrome Display Adapter (720 by 350 pixels; 2.06:1 aspect ratio) |
| MDA | Model Driven Architecture (OMG) |
| MDA | Missile Defense Agency (formerly BMDO) |
| MDA | Media Development Authority (Singapore) |
| MDA | Moldova (ISO Country code) |
| MDA | Michigan Department of Agriculture (Lansing, MI) |
| MDA | Mississippi Development Authority (Jackson, MS) |
| MDA | Management's Discussion and Analysis |
| MDA | Mail Delivery Agent |
| MDA | Malondialdehyde |
| MDA | Magen David Adom (Israel's national Emergency Medical Service) |
| MDA | Maritime Domain Awareness (US Coast Guard) |
| MDA | Medical Devices Agency |
| MDA | 3,4-Methylenedioxyamphetamine |
| MDA | Milestone Decision Authority |
| MDA | Minimum Descent Altitude |
| MDA | Mobile Data Association |
| MDA | Museum Documentation Association |
| MDA | Methylenedianiline |
| MDA | Michigan Dental Association |
| MDA | Maison des Artistes (French: House of Artists) |
| MDA | Mass Drug Administration (disease prevention tactic) |
| MDA | Multiple Displacement Amplification (biology) |
| MDA | MacDonald Dettwiler & Associates Ltd. |
| MDA | Metropolitan Development Association (Syracuse, NY) |
| MDA | Ministries, Departments and Agencies |
| MDA | Mood Disorders Association (of British Columbia) |
| MDA | Missile Defense Act |
| MDA | Mobile Digital Assistant |
| MDA | Minimum Detectable Activity |
| MDA | McDonnell-Douglas Aerospace |
| MDA | Majorations de Durée d'Assurance (French: Increased Period of Insurance) |
| MDA | Media Dependent Adapter |
| MDA | Midwest Dairy Association (est. 1971) |
| MDA | Missouri Dental Association |
| MDA | Malaysian Dental Association |
| MDA | Muscular Dystrophy Association Australia |
| MDA | Multicultural Development Association (Australia) |
| MDA | Material Disposal Area |
| MDA | M.D. Anderson Hospital (Houston, TX, USA) |
| MDA | Multiple Docking Adapter (Skylab component) |
| MDA | Manufacturing Defects Analyzer |
| MDA | Maternally Derived Antibody |
| MDA | Massachusetts Dietetic Association |
| MDA | Movement for Democracy in Algeria |
| MDA | Mailpiece Design Analyst (US Postal Service) |
| MDA | McDonnell-Douglas Aircraft |
| MDA | Music Distributors Association |
| MDA | Minimum Detectable Amount |
| MDA | Michigan Deaf Association |
| MDA | Mighty Ducks of Anaheim (NHL team) |
| MDA | Model-Driven Analysis |
| MDA | Manufacturing Defects Analysis (system for testing electronic assemblies) |
| MDA | Medicated Digest Authentication |
| MDA | Medical Digital Assistant (PDA for medical applications) |
| MDA | Minimum Decision Altitude |
| MDA | Malaysian Dancers' Association |
| MDA | Maryland Dressage Association |
| MDA | Master Distribution Amplifier |
| MDA | Missouri Dietetic Association |
| MDA | Master Derivatives Agreement |
| MDA | Mine Danger Area |
| MDA | Motorized Door Assembly |
| MDA | Morgan Dressage Association |
| MDA | Midwest Distributors Association |
| MDA | Multan Development Authority (Pakistan) |
| MDA | Medical Dental Association |
| MDA | Master of Defence Administration (UK) |
| MDA | Matrix Decomposition Algorithm |
| MDA | Mongko Defense Army |
| MDA | Magnetron Directional Amplifier |
| MDA | Maximum Development Area (real estate) |
| MDA | Maximum Development Area |
| MDA | Manual Data Automatic |
| MDA | Music Design Awards (UK) |
| MDA | Military Damage Assessment |
| MDA | Metal De-Activator |
| MDA | Mission Database Application |
| MDA | Mechanisms Drive Assembly (NASA) |
| MDA | Main Defense Area |
| MDA | Motorola Dext Android (mobile phone) |
| MDA | Management Domain Architecture |
| MDA | Multimedia Digital Assistant (electronic handheld information device) |
| MDA | Multifunction Digital Adapter |
| MDA | Marketing Department of America |
| MDA | Microstrip Disk Antenna |
| MDA | Microwave Digital Archive |
| MDA | Multi-Variate Data Analysis |
| MDA | Mosaic Detector Array (photonics) |
| MDA | Munition Disassembly Area |
| MDA | Multi-Dimensional Data Association |
| MDA | Multiservice Digital Access |
| MDA | Multi-Dimensional Attribute |
| MDA | Meteorological Data Assembly |
| MDA | Medical Doctor Assistant |
| MDA | Measurable Development Application (Northern Vantage, Inc.) |
| MDA | Milestone Delegation Authority |
| MDA | Marriage Dissolution Agreement (legal) |
| MDA | Message Disk/Core Address |
| MDA | Motor Discrimination Acuity |
| MDA | Medical Doctor of Anesthesiology |
| MDA | Material Damage Adjustment Corporation |
| MDA | Mad Dogg Athletics (equipment-based education company) |
| MDA | Message Delivery Attempt (telecommunications) |
| MDA | Miss Deaf America (pageant) |
| MDA | Multidisciplinary Assessment (various organizations) |
| MDA | Museum of Decorative Arts (various locations) |