MSA

• 5-Methoxysalicylic acid
• China Maritime Safety Administration
• Freemasonry
• Garratt
• Japan Coast Guard
• Mackintosh School of Architecture
• Magnuson-Stevens Act
• Maine Snowmobile Association
• Mainland Southeast Asia linguistic area
• Malay language
• Malaysia–Singapore Airlines
• Manchester School of Architecture
• Mannitol salt agar
• Mapping Services Agreement
• Maritime Security Agency
• Market Square Arena
• Master of Accountancy
• Master of Advanced Studies in Sports Administration
• Master of Science in Administration
• Master service agreement
• Matthew Shepard Act
• Measurement systems analysis
• Medical savings account
• Meritorious Service Award
• Message submission agent
• Metaphysical Society of America
• Methanesulfonic acid
• Metropolitan Statistical Area
• Micropolitan Statistical Area
• Microscopy Society of America
• Microservices
• Microsoft Access
• Microsoft Account
• Middle States Association of Colleges and Schools
• Middle Stone Age
• Mine Safety Appliances
• Mineralogical Society of America
• Minimum safe altitude
• Minnesota Math and Science Academy
• Mississippi School of the Arts
• Missouri Scholars Academy
• Mobile Service Architecture
• Modern Sciences and Arts University
• Modern Standard Arabic
• Monash Student Association
• Montessori School of Anderson
• Morphosyntactic alignment
• Motor Sports Association
• Motorway service area
• Multi-source agreement
• Multiple sequence alignment
• Multiple system atrophy
• Muskrat Dam Airport
• Muslim Students' Association
• Mutfak Sanatlari Akademisi
• Mutual Security Act
• Mycological Society of America
• Novato High School
• Poste Air Cargo
• Step Up (film)
• Tobacco Master Settlement Agreement
• U.S. and Japan Mutual Defense Assistance Agreement
• multiresolution analysis
• service-oriented architecture