ACS or Acs may refer to:
Businesses and organizations Businesses ACS:Law, a British law firm specializing in intellectual property cases Achinsk Airport in Krasnoyarsk Krai, Russia (IATA airport code ACS) Advanced Card Systems, a Hong Kong–based developer of smart cards and smart card readers Advanced Composites Solutions, a Brazilian engineering company specialized in composite materials technology Advanced Contact Solutions, a Philippine business process outsourcing company Affiliated Computer Services, an American business and technology outsourcing company Air Cess, a cargo airline based in Sharjah, United Arab Emirates Alaska Communications System, former name of AT&T Alascom, an American communications services company Alaska Communications Systems, an American communications services company, distinct from AT&T Alascom Applied Communication Sciences, a telecommunications research, engineering and consulting company based in the US Grupo ACS (Actividades de Construcción y Servicios), a civil engineering firm based in Madrid, Spain
Government and military Australian Customs Service, former Australian government agency for border protection, duties and taxes (1985–2009) Cavalry Corps (Ireland) (1st Armoured Cavalry Squadron), an armoured reconnaissance unit of the Irish Army New York City Administration for Children's Services, governmental agency of New York City
Professional organizations American Ceramic Society, an American professional organization American Cheese Society, a professional organization of the American cheese industry American Chemical Society, an American professional association American College of Surgeons, a fellowship of American surgeons American Constitution Society for Law and Policy, an organization of lawyers and law students in the US Association of Cricket Statisticians and Historians, an association founded England in 1973 to collect cricket data Australian Cinematographers Society, a professional not-for-profit organisation Australian Computer Society, an association for information and communications technology professionals
Schools ACS International Schools, a group of international schools in the UK Alabaster City Schools, a school district headquartered in Alabaster, Alabama Alperton Community School, a secondary school in London, UK American College of Sofia, a secondary school in Sofia, Bulgaria American Community School at Beirut, an international private school in Beirut, Lebanon American Community School in Amman, an international school in Amman, Jordan American Community School of Abu Dhabi, an international school of Abu Dhabi, United Arab Emirates American Community Schools, an English-speaking private school system in Athens, Greece American Cooperative School of La Paz American Cooperative School of Tunis Anglo-Chinese School, Singapore, a group of Methodist schools in Singapore Anglo-Chinese Schools, Malaysia, a group of Methodist schools in Malaysia Arkansas Correctional School, a school system in prisons, in Arkansas Associated Colleges of the South, a group of liberal arts colleges in the US Assumption College School, a catholic high school in Ontario, Canada Aurora Christian Schools, a private PreK-12 school in Aurora, Illinois, US Avery Coonley School, a private elementary school in Downers Grove, Illinois, US Lehman Alternative Community School, a combined middle and high school Ithaca, New York
Sports organizations AC Sparta Prague, a Czech football club AC Sporting, a Lebanese football club American CueSports Alliance, a US-based pool league Australian Cricket Society, an association of cricket lovers
Other organizations Active Club Scotland, a far-right hate group linked to the worldwide Active Club Network American Cancer Society, an American voluntary health organization dedicated to eliminating cancer American Colonization Society, an organization that helped in founding Liberia as a colony for freed slaves American Cryonics Society, non-profit corporation that supports and promotes research and education into cryonics Association of Caribbean States, an advisory, consultative body of Caribbean countries Audience Council Scotland, a BBC Trust organisation in Scotland Automobile Club of Switzerland, a Swiss motor sports organization Redfern Aboriginal Children's Services, a community services organisation for Indigenous children in Sydney, Australia
Science and technology Computing Access Control Server, a component of Cisco's Network Admission Control technology Access Control Server, the server authenticating a card in the 3-D Secure framework Access Control Service, a cloud-based service for authentication and authorization ACS-1 and ACS-360, supercomputers designed but never completed in the 1960s by the IBM Advanced Computing Systems Action Code Script, a scripting language used in video games such as Hexen: Beyond Heretic Adobe Creative Suite, a software package by Adobe Inc. Atacama Large Millimeter Array ("ALMA") Common Software, a control framework used in ground-based astronomy projects Audit Collection Services, a component of Microsoft System Center Operations Manager ATA Command Set
Medicine Acetyl-CoA synthetase, an enzyme Abdominal compartment syndrome Acute compartment syndrome Acute coronary syndrome, a form of chest pain due to reduced oxygen supply to the heart muscle Advanced Cataract Surgery, the modern method of cataract removal using phacoemulsification Alternate care site, a non-traditional medical treatment facility established in a public health crisis Antireticular cytotoxic serum, a experimental Soviet medical and lifespan extension treatment Atriocaval shunt, a surgical procedure 2-Amino-3-carboxymuconic semialdehyde, a chemical in tryptophan metabolism
Military technology ACS-3, the military version of Raybird-3, a Ukrainian UAV Aerial Common Sensor, a Lockheed Martin reconnaissance aircraft airframe for the US Army and Navy Army Combat Shirt, flame-resistant shirt developed for the US Army Attack Characterization System Auxiliary crane ship, a US Navy hull classification
Space technology Advanced Camera for Surveys, an instrument aboard the Hubble Space Telescope Advanced Composite Solar Sail System (ACS3), a NASA technology demonstration for future small spacecraft Attitude control system, a spacecraft system
Other uses in science and technology ACS, a taxonomic clade within Myzozoa Air cavity system, using air beneath a maritime vessel's hull to increase speed and fuel efficiency Anticenter shell, a supershell located outside of the galaxy
Other uses Acroá language, an extinct Ge language of Brazil (language code "acs") Achinsk Airport in Krasnoyarsk Krai, Russia (IATA airport code ACS) Acs (surname) Advanced Communicator, Silver ("ACS"), Toastmasters International Recognition for advanced Communication training Alternative compensation system, a way to allow reproduction of digital copyrighted works while still paying the authors and copyright owners American Community Survey, a project of the US Census Bureau American Crime Story, an anthology television series Auxiliary crane ship, a US Navy hull classification
See also Ács, a Hungarian town