| MAS | Chennai central Railway Station at India MAS-Railway Station code of Chennai (MAdraS) 
| Others |
| MAS | Madrid Architecture Seoul
| Others |
| MAS | Magnesium Aluminum Silicate
| Others |
| MAS | Mahindra Auto Specialities
| Others |
| MAS | Main Store
| Others |
| MAS | Making Apprenticeships Simple
| Others |
| MAS | Malaysia Amput System
| Others |
| MAS | Malaysia Amput Systemmas
| Others |
| MAS | Malaysia Amput Systemre
| Others |
| MAS | Malaysian Airline System
| Others |
| MAS | Male Answer Syndrome
| Others |
| MAS | Malibu Ss
| Others |
| MAS | Mana Ada Sistem
| Others |
| MAS | Mana Ada System
| Others |
| MAS | Managed Application System
| Others |
| MAS | Management Accounting System
| Others |
| MAS | Management Advisory Services
| Others |
| MAS | Management and Analytics System
| Others |
| MAS | Manchester Astronomical Society
| Others |
| MAS | Mango, Apple, and Santra
| Others |
| MAS | Manifest anxiety scale
| Others |
| MAS | Manila Auto Show
| Others |
| MAS | Manual Assist Services
| Others |
| MAS | Manuel A Solrzano
| Others |
| MAS | Manufacturing Advisory Service
| Others |
| MAS | Manus Island, Papua New Guinea
| Others |
| MAS | Mar Aging Steel
| Others |
| MAS | Marital Adjustment Scale
| Others |
| MAS | Mark As Spam
| Others |
| MAS | Marker Assisted Selection
| Others |
| MAS | Market Analysis System
| Others |
| MAS | Maryland Academy of Sciences
| Others |
| MAS | Masai
| Others |
| MAS | Masih Ada Susah
| Others |
| MAS | Mass Airflow Sensor
| Others |
| MAS | Mass Announcement System
| Others |
| MAS | Master Advertising Specialist
| Others |
| MAS | Master of Advanced Studies
| Others |
| MAS | Master of Advanced Study
| Others |
| MAS | Master of Applied Science
| Others |
| MAS | Master of Applied Statistics
| Others |
| MAS | Master of Archival Studies
| Others |
| MAS | Mastering Alliance Strategy
| Others |
| MAS | Mathcad Application Server
| Others |
| MAS | Matrix Adhesive Systems
| Others |
| MAS | Max Array Size
| Others |
| MAS | Maximal Aerobic Speed
| Others |
| MAS | Maximum Allowable Speed
| Others |
| MAS | Maximum Authorized Speed
| Others |
| MAS | Maximum Axle Spacing
| Others |
| MAS | McCune-Albright syndrome
| Others |
| MAS | Measurement Analysis Software
| Others |
| MAS | Meconium Aspiration Syndrome
| Others |
| MAS | Media Adaptation Server
| Others |
| MAS | Media Application Server
| Others |
| MAS | Media Assisted Spanish
| Others |
| MAS | Medical Answering Services
| Others |
| MAS | Medical Assurance Society
| Others |
| MAS | Member Annual Statements
| Others |
| MAS | Memory Administration System
| Others |
| MAS | Message Application Server
| Others |
| MAS | Metal Ammonia Solutions
| Others |
| MAS | Mexico Automotive Summit
| Others |
| MAS | Mexico the Americas and Spain
| Others |
| MAS | Michael Anthony Salvatori
| Others |
| MAS | Michigan Audubon Society
| Others |
| MAS | Micro Analog Systems
| Others |
| MAS | Micro-Architecture Specification
| Others |
| MAS | Microbeam Analysis Society
| Others |
| MAS | Microsoft Academic Search
| Others |
| MAS | Microsoft Academic Services
| Others |
| MAS | Microsoft Anti Spyware
| Others |
| MAS | Microsoft Azure Stack
| Others |
| MAS | Middleware Administration Server
| Others |
| MAS | Mildly Amused Smirk
| Others |
| MAS | Military Airlift Squadron
| Others |
| MAS | Military Arts and Sciences
| Others |
| MAS | Military Auto Source
| Others |
| MAS | Milk-Alkali Syndrome
| Others |
| MAS | Milwaukee Academy of Science
| Others |
| MAS | Minds Application Server
| Others |
| MAS | Miniature Australian Shepherd or Miniature American Shepherd
| Others |
| MAS | Minimal Access Surgery
| Others |
| MAS | Minimum Admissible Score
| Others |
| MAS | Minor Ailment Scheme
| Others |
| MAS | Mirco And Stefan
| Others |
| MAS | Missing Assignment Sheet
| Others |
| MAS | Mission Achievement and
| Others |
| MAS | Mississippi Academy of Sciences
| Others |
| MAS | Missouri Archaeological Society
| Others |
| MAS | Mixture Adjust Screw
| Others |
| MAS | Mobile Academic School
| Others |
| MAS | Mobile Access Signaling
| Others |
| MAS | Mobile Atmospheric Spectrometer
| Others |
| MAS | Model Action And Substitution
| Others |
| MAS | Modeling Analysis and Simulation
| Others |
| MAS | Modem Aggregation Services
| Others |
| MAS | Modify Add Size
| Others |
| MAS | Modis Airborne Simulator
| Others |
| MAS | Modular Aquaponic System
| Others |
| MAs | Modular Arrays
| Others |
| MAS | Modular Authentication Service
| Others |
| MAS | Monetary Authority of Singapore
| Others |
| MAS | Mongolian Academy of Sciences
| Others |
| MAS | Montreal Auto Show
| Others |
| MAS | More Adaptable Structure
| Others |
| MAS | Morgan Alyse Shara
| Others |
| MAS | Motion Analysis Shaft
| Others |
| MAS | Motor Assessment Scale
| Others |
| MAS | Motor Cu Aprindere Prin Scanteie
| Others |
| MAS | Motorist Aid System
| Others |
| MAS | MOTU Audio System
| Others |
| MAS | Movement Art Sound
| Others |
| MAS | Movimiento Al Socialismo
| Others |
| MAS | Mri Analysis Software
| Others |
| MAS | Muchas Acciones Suman
| Others |
| MAS | Multi Agent System
| Others |
| MAS | Multi Axle Steering
| Others |
| MAS | Multi-Agent System
| Others |
| MAS | Multicultural Association of Students
| Others |
| MAS | Multiple Access System
| Others |
| MAS | Multiple Address System
| Others |
| MAS | Multiple Award Schedule
| Others |
| MAS | Multiple Award Schedules
| Others |
| MAS | Municipal Art Society
| Others |
| MAS | Museum aan de Stroom
| Others |
| MAS | Music And Strategy
| Others |
| MAS | Muslim American Society
| Others |
| MAS | Mute Audiomedia Signals
| Others |
| MAS | Mutual Admiration Society
| Others |
| MAS | Mutually Assured Success
| Others |
| MAS | Muungano All Stars
| Others |
| MAS | My Angelic Son
| Others |
| MAS | Myoclonic Absence Seizure
| Others |
| MAS | Smartmaster set (Freelance Graphics)
| Others |