MSE

MSE may refer to:

Education

 * Master of Science in Engineering, a university degree
 * Master of Science in Software Engineering, a college degree in software engineering
 * Master of Software Engineering, a university degree; for example at the Information and Communications University

Science, technology and engineering

 * Manned Spaceflight Engineer, an astronaut in the United States Air Force's Manned Spaceflight Engineer Program
 * Mars Surface Exploration
 * Materials Science and Engineering
 * Maunakea Spectroscopic Explorer, a planned renovation of the Canada–France–Hawaii Telescope
 * Maximum spacing estimation, in statistics
 * Mean squared error, in statistics
 * Mechanically stabilized earth
 * Mental status examination, used by clinicians to assess aspects of a patient's mental state
 * Mercury Surface Element, the lander portion of BepiColombo space mission
 * MSE (centrifuges), Measuring and Scientific Equipment, manufacturer of laboratory centrifuges
 * Selenomethionine, a naturally occurring amino acid

Computing

 * Message Stream Encryption, a BitTorrent protocol encryption
 * Media Source Extensions, a W3C standard for Javascript media streaming
 * Metasearch engine, a search engine that consolidates results from other search engines
 * Microsoft Security Essentials, a free antivirus software
 * Mobile Subscriber Equipment, a tactical communications system formerly used by units such as the 17th Signal Battalion (United States)

Stock exchanges

 * Macedonian Stock Exchange
 * Madras Stock Exchange
 * Madrid Stock Exchange
 * Malawi Stock Exchange
 * Malta Stock Exchange
 * Mongolian Stock Exchange
 * Montenegro Stock Exchange
 * Montreal Stock Exchange

Other

 * Kent International Airport, by IATA airport code
 * Mississippi Export Railroad, common freight carrier in Mississippi, by reporting mark
 * Martha Stewart Everyday, a mass-market brand of Martha Stewart Living Omnimedia sold through Kmart
 * Medical Science Educator, academic journal
 * Melbourne String Ensemble
 * Micro and Small Enterprises
 * Ministry of Sustainability and the Environment, in Singapore
 * MoneySavingExpert.com, a British consumer finance information website
 * Monumental Sports & Entertainment, American sports and venue management company