Film and television

• SAS (TV station), a television station in Adelaide, South Australia
• SAS: Are You Tough Enough?, a British documentary series
• SAS: Red Notice, a 2021 action thriller film
• SAS: Rogue Heroes, a British historical drama TV series
• SAS: Who Dares Wins, a British reality TV series
  • Special Forces: World's Toughest Test, an American adaptation of the show
  • SAS Australia: Who Dares Wins, an Australian adaptation of the show
  • Erikoisjoukot, a Finnish adaptation of the show

Military

• An abbreviation for "Special Air Service" in various armed forces, including:
  • Special Air Service, a special forces unit of the British Army
  • Special Air Service Regiment, a special forces unit of the Australian Army
  • 5th Special Air Service, a Belgian Second World War formation
  • Canadian Special Air Service Company, a Canadian unit from 1947 to 1949
  • Free French Special Air Service, the predecessor unit of the French 1st Marine Infantry Parachute Regiment (1er RPIMa)
  • New Zealand Special Air Service, a special forces unit of the New Zealand Army
  • Rhodesian Special Air Service, several special forces units from Rhodesia
  • Special Air Service, a unit within the Special Forces of Zimbabwe
• South African Ship, the South African Navy warship prefix
• Specialized Administrative Sections, a French civil-military program during the Algerian War
• Su Altı Savunma, a special operations unit of the Turkish Navy

Brands and enterprises

• SAS Group (Scandinavian Airlines System Group), an airline company based in Stockholm, Sweden; Oslo, Norway; Copenhagen, Denmark
  • Scandinavian Airlines, the largest airline in Scandinavia
  • SAS Cargo Group, a cargo subsidiary of the company
• SAS Institute, an analytics software company headquartered in North Carolina, US
  • SAS (software), the main software product of the company
  • SAS language, the language used to program the software
• SAS (shoemakers), trademark of a shoe company in San Antonio, Texas, US
• SAS (TV station), a television station in Adelaide, South Australia
• Société par actions simplifiée, French designation of a joint stock type of company
• Southern Audio Services, an electronics manufacturer based in Baton Rouge, Louisiana, US

Healthcare

• Andalusian Health Service (Servicio Andaluz de Salud), the government-run health system of Andalusia, Spain
• Scottish Ambulance Service

Schools

Other organizations

• Second Amendment Sisters, a women's advocacy group focusing on gun rights in the United States of America
• Sense about Science, a UK-based organization promoting respect for good science
• Servants Anonymous Society, a nonprofit women's organization
• Sloboda a Solidarita or Freedom and Solidarity, a political party in Slovakia
• Slovak Academy of Sciences, the main scientific and research institution in Slovakia
• Society for Affective Science, a non-profit organization devoted to the science of affect
• Society for Amateur Scientists, an American non-profit organization
• Society for Animation Studies, an international scholarly organization
• Space Access Society, an organization dedicated to increasing the viability and reducing the cost of commercial access to space travel
• Strong American Schools, an American non-profit organization that promotes sound education policies
• Surfers Against Sewage, a UK-based campaign for clean, safe recreational water
• Sussex Archaeological Society, an archaeological society based in Lewes, Sussex, UK

Biology and medicine

• Sleep apnea syndrome, a sleep disorder in which pauses in breathing or periods of shallow breathing during sleep occur more often than normal
• Solvent-accessible surface, the surface area of a biomolecule that is accessible to a solvent
• Subarachnoid space, the space between the arachnoid mater and pia mater in the brain
• Subvalvular aortic stenosis (non-human), an abnormal, congenital heart murmur
• Syndesmotic ankle sprain, a type of ankle sprain

Computing

• SAS (software), (Statistical Analysis System) an integrated software suite produced by SAS Institute Inc.
• SAS language, a data processing and statistical analysis language
• Secure Attention Sequence, a special key combination which invokes a trusted login process (e.g. Ctrl+Alt+Delete on Windows NT systems)
• Serial Attached SCSI, a computer bus technology for the transfer of data to and from storage devices (e.g., hard disks)
• Shared access signature, a security token which can be attached to a URL
• Short Authentication String, a method used in the ZRTP cryptographic protocol
• Slot Accounting System protocol, a slot machine communication method created by the International Game Technology (IGT) corporation
• Sorcerer's Apprentice Syndrome, a network protocol flaw in the Trivial File Transfer Protocol (TFTP)
• Spatially Aware Sublayer, an optional sublayer of the MAC that provides spatial reuse in Resilient Packet Ring

Space

• Small Astronomy Satellite (disambiguation), one of three of NASA-operated space telescopes
• Space Access Society, an organization dedicated to increasing the viability and reducing the cost of commercial access to space travel
• Space activity suit, a spacesuit which provides mechanical pressure by means of elastic garments
• Space adaptation syndrome, an illness akin to motion sickness experienced by many first-time space travellers
• Sistema Avariynogo Spaseniya, (Russian: CAC, Система Аварийного Спасения), the Soyuz launch escape system

Other uses in science, technology, and mathematics

• Self-anchored suspension bridge, a suspension bridge in which the main cables attach to the ends of the deck
• Side-angle-side, a concept in geometry for determining congruence or similarity of triangles
• Small-angle scattering, a scattering technique based on the deflection of a beam of particles away from the straight trajectory after it interacts with a sample
• Solid Axle Suspension, a type of automobile suspension
• Stability Augmentation System, a limited form of autopilot that stabilizes an aircraft in one or more axes
• Synthetic aperture sonar, a form of sonar analogous to synthetic aperture radar
• Supercritical Anti-Solvent, a method used for micronization of substances