Skip to main content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
IGOs, Intergovernmental Organizations, are important actors in international affairs. They are composed of sovereign states or other intergovernmental organizations, and their relationships are governed by treaties that give them an international legal personality. They may be (1) worldwide, (2) regional, (3) economic, or (4) structured around cultural, linguistic, ethnic, religious, or historical ties.
Selective IGO Links
International Organizations and Related Information
This list of international inter-governmental organizations (IGOs) Web sites has been compiled as part of the work for a book titled, The Information Systems of International Inter-Governmental Organizations: A Reference Guide, published in December, 1998 by Ablex Publishing (Stamford, CT; ISBN=156750339X).
The following list begins with two general sources that help in finding IGOs, then lists a few very important ones.
List of International Organizations
Lists thousands of IGOs and NGOs in a single alphabetical list with the country of origin and a hyperlink to the Web site of each organization. Useful if you know the organization you are looking for.
Association of Southeast Asian Nations
Established in 1967, the 10 nations in ASEAN seek to accelerate economic growth, social progress and cultural development in the region and to promote regional peace and stability through abiding respect for justice and the rule of law.
European Union: Europa
Essential information about the activities of the European Union, including many full text primary sources.
North Atlantic Treaty Organization (NATO)
A military alliance begun in 1949 with 26 current members; founded to combat the Soviet bloc, it seeks to safeguard the freedom and security of its member countries by political and military means.
Organization of American States
The OAS brings together the nations of the Western Hemisphere to strengthen democracy and the commitment to human rights and to confront shared problems such as poverty, terrorism, illegal drugs and corruption.