CS

CS, C-S, C.S., Cs, cs, or cs. may refer to:

Job titles

 * Chief Secretary (Hong Kong)
 * Chief superintendent, a rank in the British and several other police forces
 * Company secretary, a senior position in a private sector company or public sector organisation
 * Culinary Specialist, a US Navy occupational rating

Language

 * Czech language (ISO 639-1 language code)
 * Hungarian cs, a digraph in the Hungarian alphabet

Organizations

 * Christian Social Party (Austria), a major conservative political party in the Cisleithania, part of Austria-Hungary, and in the First Republic of Austria
 * Citizens (Spanish political party), a post-nationalist political party in Spain
 * Congregation of the Missionaries of St. Charles, a Catholic religious congregation, also called Scalabrinians
 * Confederate States of America, an unrecognized confederation of secessionist North American slave states existing from 1861 to 1865

Companies

 * Colorado & Southern Railway, a railroad company in the western United States
 * Comlux Aruba NV (IATA airline code: CS)
 * Connecting Stockholm, future train operator in Sweden
 * Copenhagen Suborbitals, a Danish non-profit rocket group working on the HEAT1X-TYCHO BRAHE rocket
 * CouchSurfing, a hospitality service
 * Credit Suisse, a Swiss financial services company
 * Comp-Sultants, a defunct microcomputer company
 * CS Wind, a South Korea-based manufacturer of wind turbine towers

Places

 * Cannon Street station, London, UK, abbreviated CS in UK railway slang
 * Czechoslovakia (former ISO 3166-1 country code)
 * Serbia and Montenegro (former ISO 3166-1 country code)

Biology and medicine

 * Cardiogenic shock, a medical emergency where heart fails to pump properly to push blood forward.
 * Caesarean section, a surgical procedure to deliver one or more babies, or, rarely, to remove a dead fetus
 * Cockayne syndrome, a rare autosomal recessive, congenital disorder
 * Conditioned stimulus, in the psychological procedure of classical conditioning
 * Corticosteroids, a class of hormones produced in vertebrates, and their synthetic analogues
 * Cowden syndrome, a rare autosomal dominant inherited disorder
 * (-)-camphene synthase, an enzyme
 * CS (gene), which encodes the enzyme citrate synthase

Chemistry

 * Caesium or Cesium, symbol Cs, a chemical symbol
 * Carbon monosulfide, chemical formula CS

Computing

 * Computer science, the scientific and practical approach to computation and its applications
 * CS register, or code segment register, in X86 computer architecture
 * Cable select, an ATA device setting for automatic master/slave configuration
 * Checkstyle, a Java static code analysis tool
 * Chip select, a control line in digital electronics
 * ChanServ, an IRC network service
 * Construction Set, a program for creating or editing PC games (i.e. The Elder Scrolls Construction Set)
 * Adobe Creative Suite, a design and development software suite by Adobe Systems
 * C#, a general-purpose, multi-paradigm programming language.

Mathematics

 * cs (elliptic function), one of Jacobi's elliptic functions

Other uses in science and technology

 * Carbon steel
 * Cirrostratus cloud
 * Citizen science
 * Compressed sensing, a signal processing technique for reconstructing a signal using underdetermined linear systems
 * Control segment, part of the structure of the Global Positioning System
 * Counter-scanning, a scanning method that allows correcting raster distortions
 * cS, another form for cSt, for centistokes, a unit of viscosity
 * CS gas, a riot control agent

Other uses

 * Controlled substance, generally a drug or chemical whose manufacture, possession, or use is regulated by a government
 * Cable Ship, in civilian ship names
 * Calgary Stampede, a rodeo
 * Caught stealing, a statistic in baseball
 * Chhatrapati Shivaji, c. 1627/1630 – 1680), Indian warrior king and member of the Bhonsle Maratha clan
 * Christian Science, a religion
 * Cities: Skylines, 2015 city-building simulation video game
 * Coke Studio (disambiguation), several musical television shows
 * Counter-Strike, a series of video game first released as a 1999 modification for Half-Life
 * Cum Suis (Latin: "and associates"); see List of Latin phrases
 * Customer service, the provision of service to customers before, during and after a purchase and sale
 * Bombardier-Airbus C-Series, small jetliner
 * Ferrari 360 Challenge Stradale
 * A US Navy hull classification symbol: Scout cruiser (CS)
 * Post-nominal letters for the Missionaries of St. Charles Borromeo (Scalabrinians), a Catholic religious congregation