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List of International Organizations and Their Headquarters

International Organizations are one of the most important topics that are usually asked in various competitive exams. In the general awareness section of the competitive exam you can expect at least one or two questions from this topic. In this world, there are more than three hundred intergovernmental Organizations and some of them are international Organizations designed to address global issues such as human rights, international trade and the economy, terrorism, climate change, etc. In this article we will discuss the list of all International Organizations' names, Abbreviation, their Headquarters, and year of establishment.

International Organization

              Below is the list of  Top International Organization name, Their Headquarters and Year of  Establishment.


1. World Health Organization (WHO)

Headquarters – Geneva, Switzerland
Establishment – 1948

2. World Trade Organization (WTO)

Headquarters – Geneva, Switzerland
Establishment – 1995

3. International Atomic Energy Agency (IAEA)

Headquarters – Vienna, Austria
Establishment – 1957

4. International Monetary Fund (IMF)

Headquarters – Washington DC, USA
Establishment – 1944

5. International Court of Justice (ICJ)

Headquarters – The Hague, Netherlands
Establishment – 1945

6. Food and Agricultural Organization (FAO)

Headquarters – Rome, Italy
Establishment – 1945

7. International Labor Organization (ILO)

Headquarters – Geneva, Switzerland
Establishment – 1919

8. World Bank (WB)

Headquarters – Washington DC, USA
Establishment – 1944

9. World Economic Forum (WEF)

Headquarters – Cologny, Switzerland
Establishment – 1971

10. International Cricket Council (ICC)

Headquarters – Dubai, UAE
Establishment – 1909

11. United Nations Conference on Trade and Development (UNCTAD)

Headquarters – Geneva, Switzerland
Establishment – 1964

12. United Nations Organization (UNO)

Headquarters – New York, USA
Establishment – 1945

13. North Atlantic Treaty Organization (NATO)

Headquarters – Brussels, Belgium
Establishment – 1949

14. Organization of Islamic Cooperation (OIC)

Headquarters – Jeddah, Saudi Arabia
Establishment – 1969

15. United Nations World Tourism Organization (UNWTO)

Headquarters – Madrid, Spain
Establishment – 1975

16. Nordic Council of Ministers

Headquarters – Copenhagen, Denmark
Establishment – 1971

17. African Union

Headquarters – Addis Ababa, Ethiopia
Establishment – 2001

18. Commonwealth of Nations

Headquarters – London, UK
Establishment – 1931

19. Federation international des échecs or World Chess Federation (FIDE)

Headquarters – Lausanne, Switzerland
Establishment – 1924

20. European Free Trade Association (EFTA)

Headquarters – Geneva, Switzerland
Establishment – 1960

21. World Organization Against Torture (OMCT)

Headquarters – Geneva, Switzerland
Establishment – 1985

22. International Trade Centre (ITC)

Headquarters – Geneva, Switzerland
Establishment – 1964

23. International Centre for Settlement of Investment Disputes (ICSID)

Headquarters – Washington D.C.
Establishment – 1966

24. International Association of Athletics Federations (IAAF)

Headquarters – Monaco
Establishment – 1912

25. International Shooting Sports Federation (ISSF)

Headquarters – Munich, Germany
Establishment – 1907

26. United Nations System Staff College (UNSSC)

Headquarters – Turin, Italy
Establishment – 2002

27. Gulf Cooperation Council (GCC)

Headquarters – Riyadh, SaudiArabia
Establishment – 1981

28. International Hockey Federation (FIH)

Headquarters – Lausanne,Switzerland
Establishment – 1924

29. Commonwealth of Independent States (CIS)

Headquarters – Minsk Russia
Establishment – 1991

30. Asian Infrastructure Investment Bank (AIIB)

Headquarters – Beijing, China
Establishment – 2016

31. African Union (AU)

Headquarters – Addis Abab, Ethiopia
Establishment – 2002

32. Western European Union (WEU)

Headquarters – Paris, France
Establishment – 1954

33. Organization of Petroleum Exporting Countries (OPEC)

Headquarters – Vienna, Austria
Establishment – 1960

34. Asian Development Bank (ADB)

Headquarters – Manila, Philippines
Establishment – 1966

35. Andean Community

Headquarters – Lima, Peru
Establishment – 1969

36. United Nations High Commissioner for Refugees (UNHCR)

Headquarters – Geneva, Switzerland
Establishment – 1950

37. World Food Programme (WFP)

Headquarters – Rome, Italy
Establishment – 1961

38. Black Sea Economic Cooperation (BSEC)

Headquarters – Istanbul, Turkey
Establishment – 1992

39. United Nations Populations Fund (UNFPA)

Headquarters – New York, US
Establishment – 1969

40. United Nations Framework Convention on Climate Change (UNFCCC)

Headquarters – Bonn, Germany
Establishment – 1994 (Signed in 1993)

41. Organization for Security and Co-operation in Europe (OSCE)

Headquarters – Vienna, Austria
Establishment – 1975

42. Joint United Nations Programme on HIV/AIDS (UNAIDS)

Headquarters – Geneva, Switzerland
Establishment – 1994

43. The Fédération Internationale de Football Association (FIFA)

Headquarters – Zurich, Switzerland
Establishment – 1904

44. The International Bank for Reconstruction and Development (IBRD)

Headquarters – Washington D.C.
Establishment – 1944

45. International Finance Corporation (IFC)

Headquarters – Washington D.C.
Establishment – 1956

46. International Federation of Red Cross and Red Crescent Socities (IFRC)

Headquarters – Geneva, Switzerland
Establishment – 1919

47. The International Air Transport Association (IATA)

Headquarters – Montreal, Canada
Establishment – 1945

48. United Nations High Commissioner for Human Rights (UNHCHR)

Headquarters – Geneva, Switzerland and New York City, USA
Establishment – 1993

49. Organization of Arab Petroleum Exporting Countries (OAPEC)

Headquarters – Kuwait, Middle East
Establishment – 1968

50. International Seabed Authority (ISA)

Headquarters – Kingston, Jamaica
Establishment – 1994

51. International Maritime Organisation (IMO)

Headquarters – London, UK
Establishment – 1948

52. Association of South East Asian Nations (ASEAN)

Headquarters – Jakarta, Indonesia
Establishment – 1967

53. International Union for Conservation of Nature (IUCN)

Headquarters – Gland, Switzerland
Establishment – 1948

54. Intergovernmental Authority on Development (IGAD)

Headquarters – Djibouti, Djibouti
Establishment – 1986

55. The Shanghai Cooperation Organisation (SCO)

Headquarters – Beijing China
Establishment – 2001

56. European Bank for Reconstruction and Development (EBRD)

Headquarters – London, United Kingdom
Establishment – 1991

57. Council of Europe

Headquarters – Strasbourg, France
Establishment – 1949

58. The Non-Aligned Movement (NAM)

Headquarters – Central Jakarta, Indonesia
Establishment – 1961

59. Amnesty International (AI)

Headquarters – London, UK
Establishment – 1961

60. International Telecommunication Union (ITU)

Headquarters – Geneva, Switzerland
Establishment – 1865

61. International Fund for Agricultural Development (IFAD)

Headquarters – Rome, Italy
Establishment – 1977

62. World Federation of United Nations Associations (WFUNA)

Headquarters – New York, U.S. Geneva, Switzerland
Establishment – 1946

63. The Arab League

Headquarters – Cairo, Egypt
Establishment – 1945

64. United Nations Institute for Disarmament Research (UNIDIR)

Headquarters – Geneva, Switzerland
Establishment – 1980

65. Indian Ocean Rim Association (IORA)

Headquarters – Ebene, Mauritius
Establishment – 1997

66. World Meteorological Organization (WMO)

Headquarters – Geneva, Switzerland
Establishment – 1950

67. United Nations Children’s’ Fund (UNICEF)

Headquarters – New York, USA
Establishment – 1946

68. Commonwealth Secretariat

Headquarters – London, United Kingdom
Establishment – 1965

69. United Nations Office for Project Services (UNOPS)

Headquarters – Copenhagen, Denmark
Establishment – 1973

70. International Civil Aviation Organization (ICAO)

Headquarters – Montreal, Canada
Establishment – 1947

71. Bank for International Settlements (BIS)

Headquarters – Basel, Switzerland
Establishment – 1930

72. South Asian Association for Regional Cooperation (SAARC)

Headquarters – Kathmandu, Nepal
Establishment – 1985

73. Internet Corporation for Assigned Names and Numbers (ICANN)

Headquarters – Los Angeles, USA
Establishment – 1998

74. International Organization for Migration (IOM)

Headquarters – Geneva, Switzerland
Establishment – 1951

75. International Criminal Police Organization (INTERPOL)

Headquarters – Lyon, France
Establishment – 1923

76. United Nations Institute for Training and Research (UNITAR)

Headquarters – Geneva, Switzerland
Establishment – 1963

77. Universal Postal Union (UPU)

Headquarters – Bern, Switzerland
Establishment – 1874

78. United Nations Population Fund (UNPF)

Headquarters – New York City, USA
Establishment – 1969

79. United Nations Industrial Development Organisation (UNIDO)

Headquarters – Vienna, Austria
Establishment – 1966

80. International Organization for Standardization (ISO)

Headquarters – Geneva, Switzerland
Establishment – 1947

81. UN Women

Headquarters – New York City, USA
Establishment – 2010

82. United Nations Office for the Coordination of Humanitarian Affairs (OCHA)

Headquarters – New York, United States Istanbul, Turkey
Establishment – 1991

83. Organisation for Economic Cooperation & Development (OECD)

Headquarters – Paris, France
Establishment – 1961

84. Arctic Council

Headquarters – Tromso, Norway
Establishment – 1996

85. International Organization for Standardization (IOS)

Headquarters – Geneva, Switzerland
Establishment – 1947

86. New Development Bank (NDB)

Headquarters – Shanghai, China
Establishment – 2014

87. International Peace Bureau (IPB)

Headquarters – Geneva, Switzerland
Establishment – 1891

88. United Nations Relief and Works Agency for Palestine Refugees (UNRWA)

Headquarters – Amman, Jordan
Establishment – 1949

89. United Nations Economic and Social Commission for Western Asia (UN-ESCWA)

Headquarters – Beirut, Lebanon
Establishment – 1973

90. Central American Bank for Economic Integration (CABEI)

Headquarters – Tegucigalpa, Honduras
Establishment – 1960

91. United Nations Economic and Social Commission for Asia and the Pacific (ESCAP)

Headquarters – Bangkok, Thailand
Establishment – 1947

92. Common Market for Eastern and Southern Africa (COMESA)

Headquarters – Lusaka, Zambia
Establishment – 1994

93. Multilateral Investment Guarantee Agency (MIGA)

Headquarters – Washington D.C.
Establishment – 1988

94. European Central Bank (ECB)

Headquarters – Frankfurt, Germany
Establishment – 1998

95. International Hydrographic Organization (IHO)

Headquarters – Monaco
Establishment – 1921

96. Inter-American Development Bank (IDB)

Headquarters – Washington, DC, USA
Establishment – 1959

97. Caribbean Community (CARICOM)

Headquarters – Georgetown, Guyana
Establishment – 1973

98. International Renewable Energy Agency (IRENA)

Headquarters – Abu Dhabi, UAE
Establishment – 2009

99. United Nations Environment Programme (UNEP)

Headquarters – Nairobi, Kenya
Establishment – 1972

100. Economic Community of West African States (ECOWAS)

Headquarters – Federal Capital Territory, Nigeria
Establishment – 1975

101. United Nations Development Programme (UNDP)

Headquarters – New York City, USA
Establishment – 1965

102. African Development Bank Group (AfDB)

Headquarters – Abidjan, Ivory Coast
Establishment – 1964

103. Transparency International (TI)

Headquarters – Berlin, Germany
Establishment – 1993

104. Organization for the Prohibition of Chemical Weapons (OPCW)

Headquarters – The Hague, Netherlands
Establishment – 1997

105. International Committee of the Red Cross (ICRC)

Headquarters – Geneva, Switzerland
Establishment – 1863

106. International Olympic Committee (IOC)

Headquarters – Lausanne, Switzerland
Establishment – 1894

107. League of Arab States (LAS)

Headquarters – Cairo, Egypt
Establishment – 1945

108. World Intellectual Property Organization (WIPO)

Headquarters – Geneva, Switzerland
Establishment – 1967

109. United Nations Office on Drugs and Crime (UNODC)

Headquarters – Vienna, Austria
Establishment – 1997

110. International Council on Monuments and Sites (ICOMOS)

Headquarters – Paris, France
Establishment – 1965

111. United Nations Educational Scientific and Cultural Organization (UNESCO)

Headquarters – Paris, France
Establishment – 1945

112. Asia Pacific Economic Cooperation (APEC)

Headquarters – Singapore
Establishment – 1989

113. International Development Association (IDA)

Headquarters – Washington, DC, USA
Establishment – 1960

114. International Service for Human Rights (ISHR)

Headquarters – Geneva, Switzerland
Establishment – 1984

115. Inter-Parliamentary Union (IPU)

Headquarters – Geneva, Switzerland
Establishment – 1889

116. Council of the Baltic Sea States (CBSS)

Headquarters – Stockholm, Sweden
Establishment – 1992

117. International Union of Pure and Applied Chemistry (IUPAC)

Headquarters – Zurich, Switzerland
Establishment – 1919

118. Worldwide Fund for Nature (WWF)

Headquarters – Gland, Switzerland
Establishment – 1961

119. United Nations Human Settlement Programme (UN-Habitat)

Headquarters – Nairobi, Kenya
Establishment – 1978 

         The names of all the above International Organizations are very popular, which are asked in the competitive exams, so you have to read their names, headquarters and year of establishment very carefully.

                                 As we said we will discuss the list of all international Organizations, so the names of other International Organizations are categorized below.

Financial, trade, and customs Organizations

  • WBG : World Bank Group
  • CDB : Caribbean Development Bank 
  • IDB : Islamic Development Bank 
  • OECD : Organization for Economic and Co-operation Development 
  • ADB : Asian Development Bank
  • NDF : Nordic Development Fund 
  • ICSID : International Centre for Settlement of Investment Disputes 
  • AIIB : Asian Infrastructure Investment Bank
  • FATF : Financial Action Task Force 
  • NIB : Nordic Investment Bank 
  • IEA : International Energy Agency 
  • WTO : World Trade Organization 
  • IFAD : International Fund for Agricultural Development 
  • AFI : Alliance for Financial Inclusion 
  • NDB : New Development Bank 
  • MIGA : Multilateral Investment Guarantee Agency 
  • IADB : Inter-American Development Bank
  • WCO : World Customs Organization 
  • IMF : International Monetary Fund 
  • CEB : Council of Europe Development Bank 
  • IDLO : International Development Law Organization 
  • IBRD : International Bank for Reconstruction and Development 
  • OPEC : Organization of Petroleum-Exporting Countries 
  • EDB : Eurasian Development Bank
  • BIS : Bank for International Settlements
  • OPEC Fund : OPEC Fund for International Development 
  • IDA : International Development Association 
  • FEAS : Federation of Euro-Asian Stock Exchanges
  • BSTDB : Black Sea Trade and Development Bank 
  • ADB : African Development Bank
  • IFC : International Finance Corporation 
  • BIPM : International Bureau of Weights and Measures 
  • EBRD : European Bank for Reconstruction and Development 


International Organizations of Agricultural Research

  • ILRI : International Livestock Research Institute 
  • CIFOR : Center for International Forestry Research 
  • ICRAF : International Centre for Research in Agroforestry
  • CIP : International Potato Center 
  • CIAT : International Center for Tropical Agriculture 
  • ICRISAT : International Crops Research Institute for the Semi-Arid Tropics 
  • IRRI : International Rice Research Institute 
  • IWMI : International Water Management Institute 
  • CIMMYT : International Maize and Wheat Improvement Center 
  • IITA : International Institute of Tropical Agriculture 
  • IFPRI : International Food Policy Research Institute 
  • ICARDA : International Center for Agricultural Research in the Dry Areas 


International Educational Organizations and universities

  • UNIDROIT : International Institute for the Unification of Private Law
  • AIT : Asian Institute of Technology 
  • ERA : Academy of European Law 
  • UNU : United Nations University 
  • MUN : Model United Nations 
  • IBE : International Bureau of Education
  • EUI : European University Institute
  • COL : Commonwealth of Learning 


List of International Environmental Organizations

  • ACAP : Agreement on the Conservation of Albatrosses and Petrels 
  • GEF : Global Environment Facility 
  • GGGI : Global Green Growth Institute 
  • IPCC : Intergovernmental Panel on Climate Change 
  • IUCN : The International Union for Conservation of Nature 
  • PEMSEA : Partnerships in Environmental Management for the Seas of East Asia 
  • UNEP : United Nations Environment Programme 

International Energy organizations

  • ECT : Energy Charter Treaty
  • IIASA : International Institute for Applied Systems Analysis 
  • IEF : International Energy Forum 
  • UNIDO : United Nations Industrial Development Organization 
  • IEA : International Energy Agency : 
  • WANO : World Association of Nuclear Operators
  • NEA : Nuclear Energy Agency
  • UNAEC : United Nations Atomic Energy Commission
  • KEDO : Korean Peninsula Energy Development Organization
  • NEA : International Atomic Energy Agency
  • Euratom : European Atomic Energy Community : 
  • REEEP : Renewable Energy and Energy Efficiency Partnership 
  • IRENA : International Renewable Energy Agency 
  • ISA : International Solar Alliance
  • SE4ALL : Sustainable Energy for All 


Regional Organizations - Europe

  • EPO : European Patent Organisation 
  • ESA : European Space Agency 
  • EFDA : European Fusion Development Agreement 
  • WEU : Western European Union 
  • ICCS : International Commission on Civil Status 
  • NDPHS : Northern Dimension Partnership in Public Health and Social Well-being 
  • G9 : Group of 9 
  • CBSS : Council of the Baltic Sea States 
  • EUMETSAT : European Organisation for the Exploitation of Meteorological Satellites 
  • COST : European Cooperation in Science and Technology 
  • AER : Assembly of European Regions 
  • CCNR : Central Commission for Navigation on the Rhine 
  • EMBL : European Molecular Biology Laboratory 
  • NIB : Nordic Investment Bank
  • ESRF : European Synchrotron Radiation Facility 
  • CoE : Council of Europe 
  • WNC : West Nordic Council
  • OCCAR : Organisation for Joint Armament Cooperation 
  • ECMWF : European Centre for Medium-range Weather Forecasts 
  • EFTA : European Free Trade Association 
  • AITIC : Agency for International Trade Information and Cooperation 
  • ESF : European Science Foundation
  • BIC : British–Irish Council
  • EU : European Union 
  • CEI : Central European Initiative 
  • ESO : European Southern Observatory 

Regional Organizations - Asia

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


Fisheries Organizations

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


Law Enforcement Organization

  • PCA : Permanent Court of Arbitration 
  • ICC : International Criminal Court 
  • Interpol : International Criminal Police Organization



Ideological and Political Groupings Organization

  • NPDI : Non-Proliferation and Disarmament Initiative
  • AOSIS : Alliance of Small Island States 
  • WEOG : Western European and Others Group
  • AWEB : Association of World Election Bodies 
  • BRICS  : Brazil, Russia, India, China, South Africa
  • ALBA : Bolivarian Alliance for the Americas 
  • NAC : New Agenda Coalition
  • NAM : Non-Aligned Movement
  • G-15 : Group of 15 
  • G20 : Group of 20
  • G24 : Group of 24 
  • G-77 : Group of 77 


Transport Organization

  • ICAO : International Civil Aviation Organization
  • SETC : Southeast Europe Transport Community
  • OTIF : Intergovernmental Organisation for International Carriage by Rail
  • TRACECA : Transport Corridor Europe-Caucasus-Asia


Others Organization

  • IOR-ARC : Indian Ocean Rim Association for Regional Cooperation 
  • MSG : Melanesian Spearhead Group 
  • OPCW : Organisation for the Prohibition of Chemical Weapons
  • MTCR : Missile Technology Control Regime
  • NATO : North Atlantic Treaty Organization 
  • USAN : Union of South American Nations 
  • EAC : East African Community 
  • ASEF : Asia-Europe Foundation 
  • CSTO : Collective Security Treaty Organization
  • CELAC : Community of Latin American and Caribbean States 
  • CIS : Commonwealth of Independent States 
  • OECS : Organisation of Eastern Caribbean States 
  • SPREP : Pacific Regional Environment Programme 
  • SADC : Southern African Development Community 
  • CARICOM : Caribbean Community 
  • IOC : Indian Ocean Commission 
  • CABEI : Central American Bank for Economic Integration 
  • OSCE : Organization for Security and Co-operation in Europe 
  • OAS : Organization of American States 
  • ACS : Association of Caribbean States 
  • ECOWAS : Economic Community of West African States 
  • EAEU : Eurasian Economic Union 
  • IGAD : Intergovernmental Authority on Development 
  • ECO : Economic Cooperation Organization 
  • SCO : Shanghai Cooperation Organisation 
  • BSEC : Organization of the Black Sea Economic Cooperation 


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