Membership and adhesions
For a more comprehensive list, see Member states of the Organization of American States.
All 35 independent nations of the Americas are members of the OAS. Upon foundation in 1948, there were 21 members, most of them in Latin America:
- Argentina
- Bolivia
- Brazil
- Chile
- Colombia
- Costa Rica
- Cuba[Note 2]
- Dominican Republic
- Ecuador
- El Salvador
- Guatemala
- Haiti
- Honduras[Note 3]
- Mexico
- Nicaragua
- Panama
- Paraguay
- Peru
- United States
- Uruguay
- Venezuela
- The later expansion of the OAS included Canadaand the newly independent nations of the Caribbean. Members with later admission dates (sorted chronologically):
- Barbados (member since 1967)
- Trinidad and Tobago (1967)
- Jamaica (1969)
- Grenada (1975)
- Suriname (1977)
- Dominica (1979)
- Saint Lucia (1979)
- Antigua and Barbuda (1981)
- Saint Vincent and the Grenadines (1981)
- Bahamas (1982)
- Saint Kitts and Nevis (1984)
- Canada (1990)
- Belize (1991)
- Guyana (1991)
