CS

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

Companies

Cerulean Studios LLC, creators of the Trillian chat client
Colorado and Southern Railway, a railroad company in the western United States
Copenhagen Suborbitals, a Danish non-profit rocket group working on the HEAT1X-TYCHO BRAHE rocket
Continental Micronesia (former IATA airline code)
CouchSurfing, a hospitality exchange network
Credit Suisse (NYSE stock symbol)

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

Christian Social Party (Austria), a major conservative political party in the Cisleithanian crown lands of Austria-Hungary and in the First Republic of Austria
Congregation of the Missionaries of St. Charles, a Catholic religious congregation, also called Scalabrinians
Confederate States of America, a confederation of secessionist American states existing from 1861 to 1865

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

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
Cerulean Studios LLC, creators of the Trillian chat client
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

CS gas, a riot control agent
Cirrostratus cloud
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

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
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