MSA

MSA or M.S.A. may refer to:

Public services and agencies

 * China Maritime Safety Administration, a PRC Coast Guard
 * Maritime Safety Agency, now the Japan Coast Guard
 * Indonesian Maritime Security Agency
 * Pakistan Maritime Security Agency
 * Mutual Security Agency, established by the U.S. Mutual Security Act (1951), and distributed aid to Europe after the Marshall Plan

Academic

 * Metaphysical Society of America, a society promoting the study of philosophy and metaphysics
 * Microscopy Society of America, a society for the promotion of microscopy
 * Mineralogical Society of America, an organization for the advancement of mineralogy
 * Mycological Society of America, a society promoting the study of fungi

Commercial

 * Malaysia–Singapore Airlines, the former name for Singapore Airlines and Malaysia Airlines
 * Masonic Service Association, a Freemasonry publishing resource
 * Master service agreement, a master agreement defining services to be delivered
 * Mine Safety Appliances, a manufacturer of industrial safety clothing and equipment
 * ICAO code for Poste Air Cargo

Other

 * Maine Snowmobile Association, the snowmobile association of Maine
 * Motor Sports Association, the governing body for motorsport in the United Kingdom
 * Mad Science Alliance, a fictional organization in and the working title of the 2008 role-playing game Monster Lab
 * Movement for the Salvation of Azawad

Degrees

 * Master of Advanced Studies in Sports Administration, a sports management degree
 * Master of Accountancy, an accounting degree
 * Master of Science in Administration, a degree providing preparation for administrative positions

Schools and societies

 * Mackintosh School of Architecture, an architecture school in Glasgow, Scotland
 * Manchester School of Architecture, an architecture school in Manchester, England
 * Middle States Association of Colleges and Schools, an evaluation and accreditation association
 * Minnesota Math and Science Academy, a school in Minnesota
 * Mississippi School of the Arts, a high school in Brookhaven, Mississippi
 * Missouri Scholars Academy, a summer program at the University of Missouri
 * Montessori School of Anderson, a private school in Anderson, South Carolina
 * MSA Mutfak Sanatlari Akademisi, a culinary arts institute in Istanbul, Turkey
 * Modern Sciences and Arts University, a university in October City, Egypt
 * Muslim Students' Association, a group dedicated to Islamic societies on college campuses in Canada and the United States

Science and medicine

 * 5-Methoxysalicylic acid, a chemical compound used as a matrix in MALDI mass spectrometry
 * Mannitol salt agar, an agar used in microbiology
 * Measurement systems analysis, the analysis of the process of obtaining measurements
 * Methanesulfonic acid, an organic sulfonic acid
 * Middle Stone Age, a period of African prehistory
 * Multiple sequence alignment, an alignment of three or more biological sequences
 * Multiple system atrophy, a degenerative neurological disorder
 * Multiscale approximation or multiresolution analysis
 * Morphosyntactic alignment (linguistics)

Technology

 * Message submission agent, a computer program used when sending email
 * Microsoft Access, a database management system
 * Microsoft Account, a single sign-on web service
 * Mobile Service Architecture, a combination of Java ME extensions
 * Multi-source agreement, an agreement between multiple manufacturers to make products which are compatible across vendors
 * Measurement systems analysis, in quality management a specially designed experiment that seeks to identify the components of variation in the measurement
 * Microservice architecture, Considered by some as a variant of the service-oriented architecture (SOA), it is a method of developing software applications as a suite of independently deployable, small, modular services

Transportation

 * WAGR Msa class, a class of steam locomotive of the Western Australian Government Railways
 * Minimum safe altitude, used for safely navigating aircraft over terrain or large structures
 * Motorway service area, a public rest area
 * Muskrat Dam Airport, an airport at Muskrat Dam, Ontario, Canada (IATA code)

Other uses

 * Magnuson-Stevens Act, common alternate abbreviation of 1976 Magnuson–Stevens Fishery Conservation and Management Act (MSFCMA)
 * Mainland Southeast Asia linguistic area, a sprachbund in Southeast Asia
 * Malay language, in the ISO 639-2 and ISO 639-3 language code
 * Mapping Services Agreement, a licensing contract between local authorities in the United Kingdom and suppliers of geographic data
 * Matthew Shepard Act, 2009 United States federal hate-crime legislation
 * Market Square Arena, an indoor arena in Indianapolis, Indiana, demolished in 2001
 * Medical savings account, a tax-deferred deposit account for medical expenses
 * Meritorious Service Award, an award of the Civil Air Patrol in the United States
 * Metropolitan statistical area, a geographical area associated with an urban area of 50,000 people or more, as defined by the United States Office of Management and Budget
 * Micropolitan statistical area, a geographical area associated with an urban area of 10,000 to 49,999 people, as defined by the United States Office of Management and Budget
 * Modern Standard Arabic, also known as Literary Arabic, the standard and literary variety of Arabic used in writing and in most formal speech
 * Tobacco Master Settlement Agreement, an agreement reached between U.S. states and major tobacco companies
 * MSA Kyotei, a Japanese abbreviation in reference to U.S. and Japan Mutual Defense Assistance Agreement