OAS

OAS or Oas may refer to:

  • Organization of American States, an international organization of the Americas
  • Ohio Auction School, an auction school in Ohio, USA
  • Old Age Security, a social security payment available to most Canadians aged 65 or older
  • Oracle Application Server, an integrated, standards-based software platform
  • Oral allergy syndrome, an allergic reaction to certain fruits, nuts, and vegetables that develops in hay fever sufferers
  • Organisation de l'armée secrète, a short-lived, French far-right paramilitary organization during the Algerian War
  • OAS1, OAS2, OAS3, human genes on chromosome 12 encoding the anti-viral enzymes oligoadenylate synthetase
  • Option-adjusted spread, the flat spread over the treasury yield curve required to discount a security payments to match its market price
  • Open-Architecture-System, the main user interface of the Wersi keyboard line
  • The Odd Angry Shot, an Australian film
  • Oas, Albay, a municipality in the Philippines
  • O-Acetylserine, an amino-acid involved in cysteine synthesis
  • Ontario Archaeological Society, an organization promoting archaeology within the Province of Ontario, Canada