OAS has various meanings in the Governmental & Military category. Discover the full forms, definitions, and usage contexts of OAS in Governmental & Military.
Orbiter Avionics System
Most CommonGovernmental & Military
Organization of American States
An international organization of the countries of the Western Hemisphere, fostering cooperation among them and advancing their common interests. It has 35 member states, although the government of one of them, Cuba, is excluded from participating.