Intergovernmental organizations

African Union

1 member countries

Arab League

22 member countries

Association of Southeast Asian Nations

10 member countries

Caribbean Community

15 member countries

Central American Integration System

8 member countries

Collective Security Treaty Organization

8 member countries

Commonwealth of Independent States

9 member countries

Commonwealth of Nations

2 member countries

East African Community

6 member countries

Eurasian Economic Union

5 member countries

European Union

27 member countries

Gulf Cooperation Council

6 member countries

NATO

30 member countries

Nordic Council

8 member countries

OPEC

12 member countries

Organisation internationale de la Francophonie

46 member countries

Organisation of Islamic Cooperation

57 member countries

Organization of American States

35 member countries

Pacific Community

25 member countries

Southern African Development Community

16 member countries

Turkic Council

5 member countries

Union of South American Nations

12 member countries

United Nations

5 member countries