List of intergovernmental organizations



The following is a list of the major existing intergovernmental organizations (IGOs).

For a more complete listing, see the Yearbook of International Organizations, which includes 25,000 international non-governmental organizations (INGOs), excluding for-profit enterprises, about 5,000 IGOs, and lists dormant and dead organizations as well as those in operation (figures as of the 400th edition, 2012/13). A 2020 academic dataset on international organizations included 561 intergovernmental organizations between 1815 and 2015; more than one-third of those IGOs ended up defunct.

United Nations and agencies
The UN has six principal organs:
 * The General Assembly (the main deliberative assembly);
 * The Security Council (decides certain resolutions for peace and security);
 * The Economic and Social Council (assists in promoting international economic and social cooperation and development);
 * The Secretariat (provides studies, information, and facilities needed by the UN);
 * The International Court of Justice (the primary judicial organ).
 * The United Nations Trusteeship Council (inactive)

The UN also includes various Funds, Programmes and specialized agencies:
 * Food and Agriculture Organization
 * International Labour Organization
 * International Civil Aviation Organization
 * International Maritime Organization
 * International Telecommunication Union
 * Joint United Nations Programme on HIV/AIDS
 * United Nations Capital Development Fund
 * United Nations Human Rights Council (UNHRC)
 * United Nations International Children's Emergency Fund (UNICEF)
 * United Nations Development Programme
 * United Nations Educational, Scientific and Cultural Organization (UNESCO)
 * United Nations Environment Programme
 * United Nations Human Settlements Programme
 * United Nations Industrial Development Organization
 * United Nations Office for Disaster Risk Reduction (UNISDR)
 * United Nations Office on Drugs and Crime
 * Universal Postal Union
 * World Health Organization (WHO)
 * World Intellectual Property Organization
 * World Food Programme
 * World Meteorological Organization
 * UN Tourism
 * The UN maintains various offices:
 * United Nations Headquarters (New York City)
 * United Nations Office at Geneva
 * United Nations Office at Nairobi
 * United Nations Office at Vienna

The UN also includes subsidiary organs:
 * International Residual Mechanism for Criminal Tribunals
 * International Criminal Tribunal for the former Yugoslavia (ICTY)
 * International Criminal Tribunal for Rwanda (ICTR)

Agricultural research organizations

 * Africa Rice Center (West Africa Rice Development Association, WARDA)
 * Bioversity International (International Plant Genetics Resources Institute, IPGRI)
 * Center for International Forestry Research (CIFOR)
 * International Center for Tropical Agriculture (CIAT)
 * International Center for Agricultural Research in the Dry Areas (ICARDA)
 * International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)
 * International Food Policy Research Institute (IFPRI)
 * International Institute of Tropical Agriculture (IITA)
 * International Livestock Research Institute (ILRI)
 * International Maize and Wheat Improvement Center (CIMMYT)
 * International Potato Center (CIP)
 * International Rice Research Institute (IRRI)
 * International Water Management Institute (IWMI)
 * World Agroforestry Centre (International Centre for Research in Agroforestry, ICRAF)
 * WorldFish Center (International Center for Living Aquatic Resources Management, ICLARM)
 * World Vegetable Center
 * CGIAR
 * CAB International (Centre for Agriculture and Bioscience International, CABI)

Fisheries organizations

 * Asia-Pacific Fishery Commission (APFIC)
 * Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR)
 * Great Lakes Fishery Commission (GLFC)
 * Indian Ocean Tuna Commission (IOTC)
 * Inter-American Tropical Tuna Commission (IATTC)
 * International Commission for the Conservation of Atlantic Tunas (ICCAT)
 * International Pacific Halibut Commission (IPHC)
 * International Whaling Commission (IWC)
 * North-East Atlantic Fisheries Commission (NEAFC)
 * Northwest Atlantic Fisheries Organization (NAFO)
 * North Atlantic Salmon Conservation Organization (NASCO)
 * Pacific Salmon Commission (PSC)
 * Southeast Asian Fisheries Development Center (SEAFDEC)
 * Western and Central Pacific Fisheries Commission (WCPFC)

Maritime organizations

 * Antarctic Treaty Secretariat (ATS)
 * International Hydrographic Organization
 * International Maritime Organization
 * International Seabed Authority
 * International Council for the Exploration of the Sea (ICES)
 * Mediterranean Science Commission (CIESM)
 * North Pacific Marine Science Organization (PICES)

Financial, trade, and customs organizations

 * Alliance for Financial Inclusion (AFI)
 * African Development Bank
 * Asian Development Bank
 * Asian Infrastructure Investment Bank
 * Bank for International Settlements
 * Black Sea Trade and Development Bank (BSTDB)
 * Caribbean Development Bank (CDB)
 * Council of Europe Development Bank (CEB)
 * Eurasian Development Bank
 * European Bank for Reconstruction and Development (EBRD)
 * European Investment Bank (EIB)
 * Federation of Euro-Asian Stock Exchanges
 * Financial Action Task Force (FATF)
 * Inter-American Development Bank
 * Inter-American Investment Corporation (IDB Invest)
 * International Bureau of Weights and Measures (BIPM)
 * International Energy Agency (IEA)
 * International Fund for Agricultural Development (IFAD)
 * International Development Law Organization (IDLO), headquartered in Rome
 * International Monetary Fund (IMF)
 * Islamic Development Bank (IDB)
 * Netherlands Development Finance Company (FMO)
 * Nordic Development Fund (NDF)
 * Nordic Investment Bank (NIB)
 * New Development Bank (NDB)
 * Organization for Economic and Co-operation Development (OECD)
 * OPEC Fund for International Development (OPEC Fund)
 * Organization of Petroleum-Exporting Countries (OPEC)
 * West African Development Bank (BOAD)
 * World Bank Group
 * International Bank for Reconstruction and Development (IBRD)
 * International Development Association (IDA)
 * International Finance Corporation (IFC)
 * Multilateral Investment Guarantee Agency (MIGA)
 * International Centre for Settlement of Investment Disputes (ICSID)
 * World Customs Organization (WCO)
 * World Trade Organization (WTO)

Europe

 * European Union (EU)
 * Western European Union (defunct)
 * Big Four (Western Europe)
 * Council of Europe (CoE)
 * Central European Initiative (CEI)
 * Energy Community
 * European Free Trade Association (EFTA)
 * European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT)
 * European Patent Organisation (EPO)
 * European Political Community (EPC)
 * European Science Foundation
 * European Organisation for the Safety of Air Navigation (EUROCONTROL)
 * European Telecommunications Satellite Organization (EUTELSAT IGO)
 * Group of 9 (G9)
 * International Commission on Civil Status (ICCS)
 * Central Commission for Navigation on the Rhine (CCNR)
 * Council of the Baltic Sea States (CBSS)
 * Assembly of European Regions (AER)
 * Eiroforum
 * European Organization for Nuclear Research (CERN)
 * Danube Commission
 * European Fusion Development Agreement (EFDA JET)
 * European Molecular Biology Laboratory (EMBL)
 * European Space Agency (ESA)
 * European Southern Observatory (ESO)
 * European Synchrotron Radiation Facility (ESRF)
 * European x-ray free electron laser (European XFEL)
 * Institut Laue–Langevin (ILL)
 * Baltic Marine Environment Protection Commission
 * Benelux
 * Belgium–Luxembourg Economic Union
 * British–Irish Council
 * Nordic Council
 * Nordic Investment Bank
 * Northern Dimension Partnership in Public Health and Social Well-being (NDPHS)
 * Organisation for Joint Armament Cooperation (OCCAR)
 * Visegrád Group (V4)
 * EUREKA
 * European Cooperation in Science and Technology (COST)
 * Community for Democracy and Rights of Nations (Commonwealth of Unrecognized States)
 * European Centre for Medium-range Weather Forecasts (ECMWF)
 * South-East European Cooperation Process
 * West Nordic Council
 * Three Seas Initiative

Asia

 * Asia Cooperation Dialogue (ACD)
 * Asian Development Bank (ADB)
 * Asia-Pacific Economic Cooperation (APEC)
 * East Asia Summit (EAS)
 * Association of Southeast Asian Nations (ASEAN)
 * Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation (BIMSTEC)
 * International Network for Bamboo and Rattan (INBAR)
 * Mekong–Ganga Cooperation (MGC)
 * Mekong River Commission (MRC)
 * Partnerships in Environmental Management for the Seas of East Asia (PEMSEA)
 * South Asian Association for Regional Cooperation (SAARC)
 * Southeast Asian Ministers of Education Organization (SEAMEO)
 * Trilateral Cooperation Secretariat (TCS)
 * Gulf Cooperation Council (GCC)

Transcontinental

 * Group of Eight
 * Eurasia
 * Asia-Europe Foundation (ASEF)
 * Central Asian Cooperation Organization
 * Community for Democracy and Rights of Nations
 * Collective Security Treaty Organization (CSTO)
 * Conference on Interaction and Confidence Building Measures in Asia (CICA)
 * Commonwealth of Independent States (CIS)
 * Economic Cooperation Organization (ECO)
 * Eurasian Economic Union (EEU or EAEU)
 * GUAM Organization for Democracy and Economic Development
 * Organization of the Black Sea Economic Cooperation (BSEC)
 * Organization of Turkic States (OTS)
 * Shanghai Cooperation Organisation (SCO)
 * TRACECA
 * Union State
 * Trans-Atlantic
 * Group of Seven
 * Group of Ten (economics)
 * North Atlantic Treaty Organization (NATO)
 * Organization for Security and Co-operation in Europe (OSCE)
 * South Atlantic Peace and Cooperation Zone (ZPCAS)
 * Mediterranean
 * Union for the Mediterranean
 * Indian Ocean
 * Indian Ocean Rim Association for Regional Cooperation (IOR-ARC)
 * Indian Ocean Commission (COI)
 * Arctic Ocean
 * Arctic Council
 * Pacific Ocean:
 * ANZUS
 * Asia-Pacific Economic Cooperation (APEC)
 * Colombo Plan
 * Group of Five
 * Melanesian Spearhead Group (MSG)
 * Pacific Islands Forum
 * Pacific Regional Environment Programme (SPREP)
 * Secretariat of the Pacific Community
 * African, Caribbean and Pacific Group of States
 * Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)
 * Afro-Asian organizations
 * Asian-African Legal Consultative Organization
 * D-8 Organization for Economic Cooperation

Africa

 * African Organisation for Standardisation (ARSO)
 * African Union
 * Economic Community of Central African States (ECCAS)
 * Conseil de l'Entente
 * Economic Community of West African States (ECOWAS)
 * East African Community (EAC)
 * West African Economic and Monetary Union (UEMOA)
 * Southern African Development Community (SADC)
 * Intergovernmental Authority on Development (IGAD)
 * Arab Maghreb Union
 * International Conference on the Great Lakes Region (ICGLR)
 * African Ministers Council on Water (AMCOW)

Americas

 * Organization of American States (OAS)
 * Union of South American Nations (USAN)
 * Mercosur
 * Andean Community of Nations


 * Forum for the Progress and Integration of South America (PROSUR)
 * Caribbean Community (CARICOM)
 * Association of Caribbean States (ACS)
 * Organisation of Eastern Caribbean States (OECS)
 * Central American Parliament
 * Bolivarian Alliance for the Americas (ALBA)
 * Rio Group
 * System of Cooperation Among the American Air Forces (SICOFAA)
 * Central American Bank for Economic Integration (CABEI)
 * Central American Integration System
 * Community of Latin American and Caribbean States (CELAC)
 * Pacific Alliance

Military alliances

 * Australia, New Zealand, United States Security Treaty (ANZUS)
 * AUKUS
 * Collective Security Treaty Organization (CSTO)
 * North Atlantic Treaty Organization (NATO)
 * Inter-American Treaty of Reciprocal Assistance (Rio Pact)

Cultural, ethnic, linguistic, and religious organizations

 * Commonwealth of Nations
 * International Centre for the Study of the Preservation and Restoration of Cultural Property (ICCROM)
 * Organisation internationale de la Francophonie
 * Community of Portuguese Language Countries (CPLP)
 * Organization of Ibero-American States (OEI)
 * Arab League
 * Organisation of Islamic Cooperation
 * KAICIID Dialogue Centre
 * International Organization of Turkic Culture (TÜRKSOY)
 * Interparliamentary Assembly on Orthodoxy

Educational organizations and universities

 * Academy of European Law (ERA)
 * Asian Institute of Technology (AIT)
 * Cerlalc
 * Commonwealth of Learning (COL)
 * EUCLID (university)
 * European Schools
 * European University Institute
 * IHE Delft Institute for Water Education
 * International Bureau of Education IBE, now a part of UNESCO
 * International Institute for the Unification of Private Law
 * United Nations University (UNU)
 * University for Peace (UPEACE)
 * World Maritime University (WMU/IMO)

Law enforcement cooperation

 * International Criminal Court (ICC)
 * International Criminal Police Organization (Interpol)
 * Permanent Court of Arbitration (PCA)

Transport

 * Intergovernmental Organisation for International Carriage by Rail (OTIF)
 * Organization for Cooperation of Railways (OSJD or OSShD)
 * International Civil Aviation Organization
 * TRACECA
 * Southeast Europe Transport Community
 * International Transport Forum (ITF)

Humanitarian organizations

 * International Cospas-Sarsat Programme

Environmental organizations

 * Agreement on the Conservation of Albatrosses and Petrels (ACAP)
 * The Forum of Ministers of Environment of Latin America and the Caribbean
 * Global Biodiversity Information Facility (GBIF)
 * Global Environment Facility (GEF)
 * Global Green Growth Institute (GGGI)
 * Intergovernmental Panel on Climate Change (IPCC)
 * The International Union for Conservation of Nature (IUCN)
 * Partnerships in Environmental Management for the Seas of East Asia (PEMSEA)
 * UN Alliance for Sustainable Development Goals (UNASDG)
 * United Nations Environment Programme (UNEP)
 * Green Climate Fund (GCF)

Arms control

 * Conference on Disarmament
 * Organisation for the Prohibition of Chemical Weapons (OPCW)
 * Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO)
 * Wassenaar Arrangement
 * Nuclear Suppliers Group (NSG)
 * Australia Group (AG)
 * Missile Technology Control Regime (MTCR)

Multi sector organizations

 * International Energy Agency
 * Energy Charter
 * Energy Community
 * United Nations Industrial Development Organization (UNIDO)
 * International Institute for Applied Systems Analysis (IIASA)
 * International Energy Forum (IEF)

Nuclear power organizations

 * European Atomic Energy Community
 * International Atomic Energy Agency
 * International Centre for Synchrotron-Light for Experimental Science Applications in the Middle East
 * Korean Peninsula Energy Development Organization
 * Nuclear Energy Agency
 * United Nations Atomic Energy Commission
 * World Association of Nuclear Operators

Sustainable energy organizations

 * International Renewable Energy Agency (IRENA)
 * Sustainable Energy for All (SE4ALL)
 * Renewable Energy and Energy Efficiency Partnership (REEEP)
 * International Solar Alliance

Digital organizations

 * Packet Clearing House (PCH)
 * Digital 9 (D9)

Ideological and political groupings

 * Quadrilateral Security Dialogue (QSD)
 * Non-Aligned Movement
 * Group of Seven (G7)
 * Group of 15 (G-15)
 * Group of 77 (G-77)
 * Group of 24 (G24)
 * G20
 * Alliance of Small Island States (AOSIS)
 * BRICS (Brazil, Russia, India, China, South Africa)
 * Bolivarian Alliance for the Americas (ALBA)
 * Association of World Election Bodies (AWEB)
 * New Agenda Coalition
 * Non-Proliferation and Disarmament Initiative
 * Western European and Others Group

(disbanded)

Other

 * Advisory Centre on World Trade Organization Law
 * International Centre for Genetic Engineering and Biotechnology
 * International Institute for Democracy and Electoral Assistance (International IDEA)
 * Partners in Population and Development
 * South Centre
 * SKA Observatory (SKAO)
 * World Organisation for Animal Health
 * Forum for India-Pacific Islands cooperation (FIPIC)
 * U-Report
 * International Center for Promotion of Enterprises (ICPE)

Defunct

 * Allied Control Council
 * Arab Cooperation Council
 * Central Treaty Organization
 * Comecon
 * Council of Ambassadors
 * Customs and Economic Union of Central Africa
 * Delian League
 * Eurasian Economic Community (transformed into Eurasian Economic Union)
 * French Community
 * French Union
 * G33
 * International Authority for the Ruhr
 * International Trade Organization
 * Latin League
 * Latin Union
 * League of Corinth
 * League of Nations
 * Peloponnesian League
 * Organisation of African Unity
 * Southeast Asia Treaty Organization
 * Union of African States