SEM

SEM can refer to:

Computing

• Search engine marketing, promoting websites by increasing their visibility in search engine results
• Security event manager, a security log tool used on data networks

Economics and management

• Single European Market (disambiguation), a single market of the European Union
• Stock Exchange of Mauritius, the principal stock exchange of the island country of Mauritius
• Strategic Enrollment Management, an element of planning for new growth at a university or college

Mathematics and statistics

• Simultaneous equations models, a class of statistical models involving systems of regression equations
• Standard error of the mean, a statistical method used in data analysis
• Structural equation modeling, a statistical method used in data analysis

Places

• Craig Field (Alabama), a small airport in southern United States (IATA: SEM)
• Sem, Ariège, France
• Sem, Norway

Science and technology

• Scanning electron microscope, a microscopy method using an electron beam rather than light
• Space Experiment Module, one of the scientific experiments on the Freestar experiment that was aboard space shuttle Columbia when it disintegrated
• Synthesizer Expansion Module in an Oberheim modular synthesizer system
• Sistema Eléctrico de Magallanes, an electrical power grid of Chile
• Spectral Emission Mask, a filter applied to radio or optical transmissions to reduce or eliminate adjacent-channel interference
• Standard error of the mean, the standard deviation of the sample-mean's estimate of a population mean.

Schools, organisations, societies

• The School of Ecclesiastic Music the school of Byzantine Music in Mount Lebanon
• Swedish Evangelical Mission, an independent organisation within the Church of Sweden
• Society for Ethnomusicology, a major international ethnomusicology association sited in Indiana
• Science and Engineering Magnet, a school in Dallas, Texas
• Stockholm Ethnographical Museum in Sweden

Other

• Šēm, Sēm - Shem, one of the sons of Noah, as depicted in the Bible
• Georges Goursat, known as Sem, a French artist
• Elise Sem (1870–1950), a Norwegian barrister, women's activist and sports official
• Super Étendard Modernisé, a fighter aircraft used by the French Navy
• Self-evaluation maintenance theory, a psychological theory of self
• Sequential Excavation Method, describes a popular method of modern tunnel design and construction. AKA the New Austrian Tunnelling method.
• Sports and exercise medicine, a branch of medicine