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
  • Antarctic Treaty System
  • Asian Development Bank
  • Asia-Pacific Economic Cooperation
  • Association of Southeast Asian Nations
  • Australia Group
  • Australia-New Zealand-United States Security Treaty
  • Bank for International Settlements
  • Black Sea Economic Cooperation Zone
  • Board of Peace
  • C5+1
  • Council of Europe
  • Council of the Baltic Sea States
  • Dominican Republic–Central America Free Trade Agreement
  • Euro-Atlantic Partnership Council
  • European Bank for Reconstruction and Development
  • European Organization for Nuclear Research
  • Fédération Internationale de Football Association
  • Group of Seven
  • Group of Ten
  • Group of Twenty Finance Ministers and Central Bank Governors
  • Inter-American Development Bank
  • International Chamber of Commerce
  • International Criminal Police Organization
  • International Energy Agency
  • International Federation of Red Cross and Red Crescent Societies
  • International Grains Council
  • International Hydrographic Organization
  • International Mobile Satellite Organization
  • International Olympic Committee
  • International Organization for Standardization
  • International Red Cross and Red Crescent Movement
  • International Telecommunications Satellite Organization
  • International Trade Union Confederation
  • North Atlantic Treaty Organization
  • Nuclear Energy Agency
  • Nuclear Suppliers Group
  • Organisation for Economic Co-operation and Development
  • Organization for Security and Cooperation in Europe
  • Organization of American States
  • Pacific Community
  • Pacific Islands Forum
  • Paris Club
  • Permanent Court of Arbitration
  • South Asian Association for Regional Cooperation
  • Southeast European Cooperative Initiative
  • United Nations - 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
  • *International Atomic Energy Agency
  • *International Civil Aviation Organization
  • *International Fund for Agricultural Development
  • *International Labour Organization
  • *International Maritime Organization
  • *International Monetary Fund
  • *International Organization for Migration
  • *International Telecommunication Union
  • *Organisation for the Prohibition of Chemical Weapons
  • *Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization
  • *United Nations Children's Fund
  • *United Nations Conference on Trade and Development
  • *United Nations Educational, Scientific and Cultural Organization
  • *United Nations High Commissioner for Refugees
  • *United Nations Mission for Justice Support in Haiti
  • *United Nations Truce Supervision Organization
  • *Universal Postal Union
  • *World Bank Group
  • **International Bank for Reconstruction and Development
  • **International Centre for Settlement of Investment Disputes
  • **International Development Association
  • **International Finance Corporation
  • **Multilateral Investment Guarantee Agency
  • *World Food Programme
  • *World Intellectual Property Organization
  • *World Meteorological Organization
  • World Trade Organization
  • World Customs Organization
  • World Organization of the Scout Movement
  • World Veterans Federation
  • Zangger Committee

    Currently withdrawing

  • Paris Agreement
  • United Nations Human Rights Council
  • United Nations Relief and Works Agency for Palestine Refugees in the Near East
As per presidential memorandum signed on 7 January 2026: