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International organization membership of the United States

The following is a list of international organizations in which the United States of America officially participates.

Memberships

Agreement between the United States of America, the United Mexican States, and Canada (USMCA)
Antarctic Treaty System (ATS)
Asian Development Bank (ADB) (nonregional member)
Asia-Pacific Economic Cooperation (APEC)
Association of Southeast Asian Nations (ASEAN) (dialogue partner)
Australia Group
Australia-New Zealand-United States Security Treaty (ANZUS)
Bank for International Settlements (BIS)
Black Sea Economic Cooperation Zone (BSEC) (observer)
Board of Peace
C5+1
Council of Europe (CE) (observer)
Council of the Baltic Sea States (CBSS) (observer)
Dominican RepublicÃ¢ÂÂCentral America Free Trade Agreement (CAFTA-DR)
Euro-Atlantic Partnership Council (EAPC)
European Bank for Reconstruction and Development (EBRD)
European Organization for Nuclear Research (CERN) (observer)
FÃÂ©dÃÂ©ration Internationale de Football Association (FIFA)
Group of Seven (G7)
Group of Ten (G10)
Group of Twenty Finance Ministers and Central Bank Governors (G20)
Inter-American Development Bank (IADB)
International Chamber of Commerce (ICC)
International Criminal Police Organization (Interpol)
International Energy Agency (IEA)
International Federation of Red Cross and Red Crescent Societies (IFRCS)
International Grains Council (IGC)
International Hydrographic Organization (IHO)
International Mobile Satellite Organization (IMSO)
International Olympic Committee (IOC)
International Organization for Standardization (ISO)
International Red Cross and Red Crescent Movement (ICRM)
International Telecommunications Satellite Organization (ITSO)
International Trade Union Confederation (ITUC)
North Atlantic Treaty Organization (NATO)
Nuclear Energy Agency (NEA)
Nuclear Suppliers Group (NSG)
Organisation for Economic Co-operation and Development (OECD)
Organization for Security and Cooperation in Europe (OSCE)
Organization of American States (OAS)
Pacific Community (SPC)
Pacific Islands Forum (PIF) (partner)
Paris Club
Permanent Court of Arbitration (PCA)
South Asian Association for Regional Cooperation (SAARC) (observer)
Southeast European Cooperative Initiative (SECI) (observer)
United Nations (UN) - Membership in the UN includes participation in the UN's Six Principal Organs: the General Assembly, Secretariat, International Court of Justice, Security Council, Economic and Social Council, and Trusteeship Council.
United Nations System
Food and Agriculture Organization (FAO)
International Atomic Energy Agency (IAEA)
International Civil Aviation Organization (ICAO)
International Fund for Agricultural Development (IFAD)
International Labour Organization (ILO)
International Maritime Organization (IMO)
International Monetary Fund (IMF)
International Organization for Migration (IOM)
International Telecommunication Union (ITU)
Organisation for the Prohibition of Chemical Weapons (OPCW)
Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO Preparatory Commission)
United Nations Children's Fund (UNICEF)
United Nations Conference on Trade and Development (UNCTAD)
United Nations Educational, Scientific and Cultural Organization (UNESCO)
United Nations High Commissioner for Refugees (UNHCR)
United Nations Mission for Justice Support in Haiti (INUJUSTH)
United Nations Truce Supervision Organization (UNTSO)
Universal Postal Union (UPU)
World Bank Group (WBG)
International Bank for Reconstruction and Development (IBRD)
International Centre for Settlement of Investment Disputes (ICSID)
International Development Association (IDA)
International Finance Corporation (IFC)
Multilateral Investment Guarantee Agency (MIGA)
World Food Programme (WFP)
World Intellectual Property Organization (WIPO)
World Meteorological Organization (WMO)
World Trade Organization (WTO)
World Customs Organization (WCO)
World Organization of the Scout Movement (WOSM)
World Veterans Federation (WVF)
Zangger Committee (ZC)

Currently withdrawing

Paris Agreement (Paris Climate Accords)
United Nations Human Rights Council (UNHRC)
United Nations Relief and Works Agency for Palestine Refugees in the Near East (UNRWA)

As per presidential memorandum signed on 7 January 2026:

Notably absent

International Criminal Court - Signed treaty, but did not ratify (December 31, 2000). Withdrew signature (May 6, 2002). See also United States and the International Criminal Court.
World Health Organization (WHO)

See also

References

External links