CAS

CAS may refer to:

Institutions

California Academy of Sciences, a museum of natural history, San Francisco, California, USA
Casualty Actuarial Society, a professional society of actuaries in the United States
Centre for Astrophysics and Supercomputing, a research center at Swinburne University in Australia
Chinese Academy of Sciences, the national academy for the natural sciences of China
College of Arts and Sciences (disambiguation)
Combined Associated Schools, an association of private schools in Sydney, Australia
Court of Arbitration for Sport, an international arbitration body set up to settle disputes related to sports
Swiss Alpine Club (abbreviated CAS in four non-English languages), a mountaineering club in Switzerland
Children's Aid Society, a private charity in New York City
Children's Aid Society (Canada), a Canadian government organization (province of Ontario)
Christchurch Adventist School, a Seventh-day Adventist school in New Zealand
Civil Aid Service, a Hong Kong Civil Aid agency
Cinema Audio Society, an association of sound professionals in the Motion Picture and Television Industry

CAS latency (column address strobe or column address select), a latency in reading computer memory
Central Authentication Service, a single sign-on protocol
Channel Associated Signaling, a type of communication signaling
Code Access Security in the Microsoft .NET framework
Compare-and-swap, a special CPU instruction
Computer algebra system, a software program that facilitates symbolic mathematics
Conditional access system, selective digital media transmission system
Console access server, a device or service that provides access to the system console of a computing device
Consumer alert system, a spyware/adware program
Content-addressable storage, a data storage mechanism
Cycle Accurate Simulator, a computer program that simulates a microarchitecture cycle-accurate

Calcium sulfide (CaS), a chemical compound
Cassiopeia (constellation) (Cas), standard astronomical abbreviation
Chemical Abstracts Service, a division of the American Chemical Society which produces bibliographic and chemistry databases
- CAS registry number, unique numerical identifiers for chemical substances
Cognitive Assessment System, an academic assessment test given to children
Complete active space, in quantum chemistry, a type of classification for the molecular orbitals
Complex adaptive system, special cases of complex systems
Computer assisted surgery, use computer technology in surgery
Hartley kernel, which also is known as the cosine and sine function

Classic Arts Showcase, an American television channel promoting the fine arts
Court and Spark, an album by Canadian folk singer/songwriter Joni Mitchell
Cowboy action shooting, a competitive shooting sport
Create-a-Sim, part of The Sims (series) games where one creates playable characters
Create-a-Superstar, a creation mode in WWE (video game series)

Chief of the Air Staff (disambiguation), in some Commonwealth nations, the professional head of the air force
Close air support, a military tactic whereby aircraft are in close proximity to friendly forces
Combat armor suit, a specialized suit that provides powered armor
Cost Accounting Standards, accounting requirements for larger defense and government contractors (United States)

Calibrated airspeed, the airspeed shown by an airspeed indicator
Covenant Aviation Security, LLC, a company that provides security services to the aviation industry
Crew-alerting system, the cockpit computer that issues system warnings to pilots

Canadian Aboriginal Syllabics, characters used to write Algonquian, Inuit, and Athabaskan languages
Castleford, a common abbreviation for the town in West Yorkshire, UK
Certificate of Advanced Study, a post-master's academic certificate
Channel Associated Signaling in telecommunications
Citizens Advice Scotland, the umbrella organisation for Citizens Advice Bureaux in Scotland
Cloud Appreciation Society, a group that promotes understanding and appreciation of clouds
Crank Angle Sensor, a component used in an internal combustion engine
Creativity, action, service, the community service aspect of the International Baccalaureate Diploma Programme