Organization of American States 美洲国家组织
（重定向自Pan American Union）
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![The Pan American Union shortly after its construction in 1910](/Images/godic/202502/01/Pan_american_19000801.jpg")
![Pan American Union headquarters building in Washington, D.C., 1943.](/Images/godic/202502/01/Pan_American_Union,_Washington,_DC_in_19430801.jpg")
![A session of the OAS's thirty-fifth General Assembly in Fort Lauderdale, Florida, United States, June 2005.](/Images/godic/202502/01/Organization_of_American_States_General_Assembly0801.jpg")
The Organization of American States (Spanish:Organización de los Estados Americanos, Portuguese:Organização dos Estados Americanos, French:Organisation des États Américains), or the OAS or OEA, is an inter-continental organization founded on 30 April 1948, for the purposes of regional solidarity and cooperation among its member states. Headquartered in Washington, D.C., United States, the OAS's members are the 35 independent states of the Americas.