OAS or Oas may refer to:
Chemistry
- O-Acetylserine, amino-acid involved in cysteine synthesis
Computers
- Open-Architecture-System, the main user interface of Wersi musical keyboards
- OpenAPI Specification (originally Swagger Specification), specification for machine-readable interface files for RESTful Web services
- Oracle Application Server, software platform
Medicine
- Open aortic surgery, surgical technique
- Oral allergy syndrome, food-related allergic reaction in the mouth
- 2'-5'-oligoadenylate synthase, an enzyme
Organizations
- Office of Aviation Services, agency of the United States Department of the Interior
- Ontario Archaeological Society, organization promoting archaeology within the Province of Ontario, Canada
- Organisation Armée Secrète, French dissident terrorist organisation, active during the Algerian War (1954–62), fighting against Algerian independence
- Organization of American States, continental organization of the Western Hemisphere
- Oxford Art Society, society for artists in the city of Oxford, England
Transport
- Oasis LRT station, Singapore, LRT station abbreviation OAS
Other
- Ohio Auction School, school for auctioneers in Ohio, U.S.
- Old Age Security, social security payment available to most Canadians aged 65 or older
- Option-adjusted spread, the yield-curve spread of a fixed-income security, adjusted for the cost of embedded options
- Oas, Albay, municipality in the Philippines
See also
Topics referred to by the same term
This disambiguation page lists articles associated with the title OAS.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: