| Acronym | Definition |
|---|
| MPA | Master of Public Administration |
| MPA | Marine Protected Area (ecology/environment) |
| MPA | Magazine Publishers of America |
| MPA | Maritime and Port Authority |
| MPA | Music Publishers' Association |
| MPA | Master Photographers Association (UK) |
| MPA | Metropolitan Police Authority (UK) |
| MPA | Motion Picture Association |
| MPA | Medroxyprogesterone Acetate (progestin used in Hormone Replacement Therapy) |
| MPA | Materialpruefungsanstalt (Werkstofftechnologie Materialpruefungsanstalt Stuttgart) |
| MPA | MegaPascal (SI derived unit of pressure or stress) |
| MPA | Maritime Patrol Aircraft (US Navy) |
| MPA | Max-Planck-Institut für Astrophysik |
| MPA | Multiple Project Assurance |
| MPA | Medical Products Agency (Sweden) |
| MPA | Magazine Publishers Association |
| MPA | Maine Principals' Association |
| MPA | Macedonian Press Agency |
| MPA | Master of Professional Accountancy |
| MPA | Midwestern Psychological Association |
| MPA | Morgan Park Academy |
| MPA | Michigan Press Association |
| MPA | Michigan Pharmacists' Association |
| MPA | Music Performance Assessment |
| MPA | Marriage Protection Amendment |
| MPA | Microsoft Product Activation |
| MPA | Multi-Purpose Amplifier |
| MPA | Motorcar Parts of America (Torrance, CA) |
| MPA | Massachusetts Port Authority |
| MPA | Mouvement pour l'Autodétermination (French: Movement for Self-Determination; political movement) |
| MPA | medial preoptic area |
| MPA | Mpacha, Namibia (Airport Code) |
| MPA | Massachusetts Psychological Association |
| MPA | Member Provincial Assembly (Pakistan) |
| MPA | Microsoft Project Association (original name; now known as Official Industry Association for Microsoft Office Project) |
| MPA | Main Propulsion Assistant |
| MPA | Maine People's Alliance |
| MPA | Major Projects Association (Oxford, UK) |
| MPA | Missouri Pharmacy Association (Jefferson City, MO) |
| MPA | Military Personnel Appropriation |
| MPA | Magnetospheric Plasma Analyzer |
| MPA | Microstrip Patch Antenna |
| MPA | Missouri Pork Association |
| MPA | Michigan Petroleum Association |
| MPA | Multi-Port Amplifier |
| MPA | Message Passing Algorithm |
| MPA | Marketing & Public Affairs |
| MPA | Manpower Authorization |
| MPA | Mouvement Populaire Anjouanais (Comoros) |
| MPA | Military Personnel Army (Military Personnel Army Financial Management System, MPA FMS) |
| mPa | Milli Pascal |
| MPA | Master Purchasing Agreement |
| MPA | Malaysian Psychiatric Association |
| MPA | Mount Pleasant Airfield (Falkland Islands) |
| MPA | Magic Plate Armor (gaming) |
| MPA | Milk Producers Association |
| MPA | Montana Psychological Association |
| MPA | Mount Pisgah Academy |
| MPA | Multiagent Planning Architecture |
| MPA | Military Pay and Allowances |
| MPA | Missile Procurement, Army |
| MPA | Manitoba Pharmaceutical Association (Canada) |
| MPA | Motivation, Power & Achievement Society (Vancouver, BC, Canada) |
| MPA | Motion Picture Alliance for the Preservation of American Ideals (also seen as MPAPAI) |
| MpA | Motion På Arbejdspladsen (Denmark) |
| MPA | Military Performance Average (US Air Force Academy) |
| MPA | Mission Planning Agent |
| MPA | Minnesota Percussion Association |
| MPA | Minor Physical Anomaly (psychology) |
| MPA | Master of Performing Arts |
| MPA | Mesa Police Association (Mesa, AZ) |
| MPA | Maningrida Progress Association (community-owned business organisation; Maningrida, Arnhem Land, Australia) |
| MPA | Modern Poetry Association (now The Poetry Foundation) |
| MPA | Master Printers of America |
| MPA | Military Personnel Account |
| MPA | Multiple Payload Adapter |
| MPA | Medical Practice Administrator |
| MPA | Most Placeable Applicant |
| MPA | Mass Parking Apron (airfield operations) |
| MPA | Mathematical Processes and Applications (UK) |
| MPA | Matrix Pade Approximation |
| MPA | Maintenance Program Assist |
| MPA | Mouvement pour les Autonomies (French: Movement for Autonomy; Italian political party) |
| MPA | Mail Processing Annex (USPS) |
| MPA | Malawi Procurement Authority |
| MPA | Manitoba Psychiatric Association |
| MPA | Michigan Paraoptometric Association |
| MPA | Materials Preparing Activity |
| MPA | Maguire Peristaltic Automatic (pump series) |
| MPA | Maryland & Pennsylvania Railroad Company |
| MPA | Michael Price Associates |
| MPA | Minot Pagan Alliance |
| MPA | Markov Process Algebra |
| MPA | Master Power Amplifier |
| MPA | Micropurchase Automation |
| MPA | Matrix Power Amplifier |
| MPA | Main Payment Account |
| MPA | Multiple Product Advertisement |
| MPA | Maximal Progress Assumption |
| MPA | Manufacturing Program Analysis |
| MPA | Mongolian Printing Association |
| MPA | Measurement of Unconfined Compression Strength |
| MPA | Master Partnership Agreement |
| MPA | Modification Proposal & Analysis |
| MPA | Mission, Production, and Awards System (Army) |
| MPA | Multiple Product Announcement |
| MPA | Montcrest Parents' Association |
| MPA | Material Protection Area |
| MPA | Master Problemlösnings Analys |
| MPA | Mask-Programmed Array |
| MPA | Management Production Assistant |
| MPA | Major Project Approval (Australia) |
| MPA | Moss Park Armories (Canadian Forces Reserve Armory in Toronto) |
| MPA | Multiple-Processor Aware |
| MPA | Multiple Pulsewidth Acquisition |
| MPA | Masters Physician Assistant (academic degree) |
| MPA | Maintenance Proactive Affecting (Sprint) |
| MPA | Message Protection Appliance (Ironport) |
| MPA | Myanma Port Authority (Myanmar) |
| MPA | Mario Party Advance (video game) |
| MPA | Mortgage Professional Australia (magazine) |
| MPA | Music Phone Adapter |
| MPA | Master Plan Amendment (various locations) |
| MPA | Merseyside Police Authority (UK) |
| MPA | Multiple Precision Arithmetic |
| MPA | Medical Power of Attorney (legal document) |
| MPA | Musical Performance Anxiety (psychology) |
| MPA | Marriage Protection Act |
| MPA | Multi-Program Handshaking |
| MPA | Microscopic Polyangiitis (vasculitis) |