The Organization of American States is the premier regional forum for political discussion, policy analysis and decision-making in Western Hemisphere affairs. The OAS brings together leaders from nations across the Americas to address hemispheric issues and opportunities.

The OAS currently has 35 member states. In addition, the Organization has granted permanent observer status to 62 states, as well as to the European Union.

The Organization of American States (OAS or OEA; Spanish: Organización de los Estados Americanos; Portuguese: Organização dos Estados Americanos; French: Organisation des États américains) is an international organization founded on 30 April 1948 to promote cooperation among its member states within the Americas.

The OAS currently has 35 member states. In addition, the Organization has granted permanent observer status to 62 states, as well as to the European Union.

33 out of 35 sovereign states of the Americas are member states of the Organization of American States (OAS); Cuba and Nicaragua are the only exceptions, although they are both former member states. [1] When formed on 5 May 1948, there were 21 members of the OAS.

美洲国家组织（Organization of American States—OAS）由美国和拉丁美洲的国家组成的区域性国际组织，其前身是美洲共和国国际联盟。 成立于1890年4月14日，1948年在波哥大举行的第9次泛美大会上改称现名。

2025年3月10日 · The United States congratulates Surinamese Foreign Minister Albert Ramdin on his election today as the next Secretary General of the Organization of American States (OAS) for the 2025-2030 term. I look forward to working with Secretary General-elect Ramdin to uphold the OAS’s core mission of defending democracy, promoting and …

2022年10月19日 · The Organization of American States (OAS) is a multilateral regional body focused on human rights, electoral oversight, social and economic development, and...

2025年3月11日 · Organization of American States (OAS), organization formed to promote economic, military, and cultural cooperation among its members, which include almost all of the independent states of the Western Hemisphere. The OAS’s main goals are to prevent any outside state’s intervention in the Western Hemisphere and to maintain peace between the ...

The Organization of American States (OAS) is the world's oldest regional organization, dating back to the First International Conference of American States, held in Washington, D.C., from October 1889 to April 1890. At that meeting the establishment of the International Union of American Republics was approved.