IAS may refer to:

Science

  • Institute for Advanced Study, in Princeton, New Jersey, United States
  • Image Analysis & Stereology, the official journal of the International Society for Stereology & Image Analysis.
  • Iowa Archeological Society, United States
  • Iranian Arachnological Society, for the study of arachnids in Iran
  • International AIDS Society, an association of HIV/AIDS professionals
  • Institute of Agricultural Sciences, Banaras Hindu University, in India
  • Institute for Advanced Study at University of Minnesota in Minneapolis, Minnesota
  • Institute of Advanced Study (Durham) in Durham, North East England
  • IEEE Industry Applications Society
  • International Association of Sedimentologists

Government

  • Indian Administrative Service, the Indian administrative civil service
  • Intergovernmental Affairs Secretariat (Canada)
  • Internal Audit Service (European Commission)

Finance

  • International Accounting Standards
  • Investment Analysts Society of Southern Africa
  • various numbered International Financial Reporting Standards

Religion

  • International Association of Scientologists
  • International Association of Sufism

Politics

  • Institute for Anarchist Studies
  • Izquierda Asturiana, a political party in Spain
  • Immunisation Awareness Society, a New Zealand anti-vaccination group
  • International Aviation and Shipping emissions, specifically greenhouse gas emissions arising from those sectors (the term also used in the United Kingdom Climate Change Act 2008)

Aeronautics

  • Indicated airspeed
  • Institute of Aerospace Sciences, in the United States
  • Institut aéronautique et spatial, in France
  • Iași International Airport, IATA designation for the airport in Iași, Romania
  • IAS Cargo Airlines, a British airline

Computing

  • IAS machine, the first electronic computer built at the Institute for Advanced Study
  • Interactive Application System, a DEC PDP-11 operating system
  • Internet Application Server, alternate name for Oracle Application Server
  • Internet Authentication Service, a component of Windows Server

Other uses

  • Instituto Ayrton Senna, an NGO in Brasil
  • Insulin autoimmune syndrome, a rare cause of reversible autoimmune hypoglycemia
  • Integral Ad Science, an American technology company that analyzes the value of digital advertisements
  • International Automated Systems, an American company
  • IAS Limited an Australian-based gambling company
  • Internal anal sphincter, human anatomy

See also

  • Institute for Advanced Study (disambiguation)