MSL may refer to:
University degrees Master of Sustainability Leadership, a master's degree in sustainability leadership studies Master of Science in Leadership, a master's degree in leadership studies Master of Studies in Law, a master's degree for students who wish to study the law but do not want to become attorneys Master of Science of Law, a master's degree for students who wish to study the law but do not want to become attorneys
Business Medical science liaison, a healthcare consulting professional Meta Superintelligence Labs, an artificial intelligence business division of Meta Platforms Manning Selvage & Lee, now MSLGROUP, public relations firm, part of Publicis Groupe
Organizations RoboCup Middle Size League, robot soccer competition MBCGame StarCraft League, StarCraft tournament in Korea Milwaukee School of Languages, in Wisconsin, US Microscopical Society of London, original incarnation of the Royal Microscopical Society
Places Marshall railway station, Victoria, Australia, station code Northwest Alabama Regional Airport, US, IATA code
Science and technology Mars Science Laboratory, a NASA mission which landed rover Curiosity Master Subsidy Lock, a type of cell phone SIM lock used by U.S. CDMA carriers Materials Science Laboratory, an ESA payload on ISS Mean sea level Metal Shading Language, used for Apple's Metal graphics API Microgravity Science Laboratory, first flown on STS-83 Maximum segment lifetime of TCP segment in networking Midsternal line, an imaginary plane running through the median section of a sternum mIRC scripting language (abbreviated as mSL), a scripting language embedded in mIRC, an IRC client, used for automation of actions (usually for bots) and customization of the client Mission and Spacecraft Library, a website that tracks satellites Moisture sensitivity level, for semiconductor handling Multilayer soft lithography, a fabrication process Multiple single-level, computer security systems Materialem zum sumerischen Lexikon (Materials for the Sumerian Lexikon), a multi-volume series of publications that compile and analyze ancient Sumerian lexical lists.
Sign languages Macedonian Sign Language, the sign language of the deaf community in Macedonia Malagasy Sign Language, a sign language used for communication among hearing impaired people in Madagascar Mauritian Sign Language, a sign language used in Mauritania Maritime Sign Language, a sign language descended from British Sign Language Mongolian Sign Language, a sign language used in Mongolia Moroccan Sign Language, a sign language of the deaf community of Tetouan and some other cities of Morocco
Sports Major Soccer League, an indoor soccer league in the United States from 1978 to 1992 Malaysia Super League, a top-tier football league in Malaysia Major Series Lacrosse, a Senior A box lacrosse league in Canada Memphis Sport Live, radio show, Tennessee, US Moldovan Super Liga, top division association football league in Moldova Mzansi Super League, a cricket tournament in South Africa