| English | eng-000 | International Association of Lawyers Against Nuclear Arms |
| français | fra-000 | International Association of Lawyers Against Nuclear Arms |
| Deutsch | deu-000 | International Association of Lighthouse Authorities |
| English | eng-000 | International Association of Lighthouse Authorities |
| Nederlands | nld-000 | International Association of Lighthouse Authorities |
| nynorsk | nno-000 | International Association of Lighthouse Authorities |
| English | eng-000 | International Association of Lions Clubs |
| English | eng-000 | International Association of Lions clubs |
| English | eng-000 | International Association of Literary Critics |
| English | eng-000 | International Association of Logopedics and Phoniatrics |
| English | eng-000 | International Association of Lyceum Clubs |
| English | eng-000 | International Association of Machinists and Aerospace Workers |
| English | eng-000 | International Association of Mayors and Others Responsible for Partially or Entirely French-speaking Capital Cities or Metropolises |
| English | eng-000 | International Association of Medical Laboratory Technologists |
| English | eng-000 | International Association of Mercury Producers |
| English | eng-000 | International Association of Meteorology and Atmospheric Physics |
| English | eng-000 | International Association of Meteorology and Atmospheric Sciences |
| English | eng-000 | International Association of Mutual Insurance Companies |
| English | eng-000 | International Association of Nitrox and Technical Divers |
| français | fra-000 | International Association of Nitrox and Technical Divers |
| italiano | ita-000 | International Association of Nitrox and Technical Divers |
| Nederlands | nld-000 | International Association of Nitrox and Technical Divers |
| English | eng-000 | International Association of Peacekeeping Training Centres |
| English | eng-000 | International Association of Penal Law |
| English | eng-000 | International Association of Permanent Representatives to the United Nations |
| English | eng-000 | International Association of Physical Oceanography |
| English | eng-000 | International Association of Physical Sciences of the Ocean |
| English | eng-000 | International Association of Ports and Harbors |
| English | eng-000 | International Association of Ports and Harbours |
| English | eng-000 | International Association of Prosecutors |
| English | eng-000 | International Association of Public Transport |
| English | eng-000 | International Association of Restructuring, Insolvency and Bankruptcy Professionals |
| English | eng-000 | International Association of Rights and Humanity |
| français | fra-000 | International Association of Rights and Humanity |
| English | eng-000 | International Association of School Librarianship |
| English | eng-000 | International Association of Schools and Institutes of Administration |
| English | eng-000 | International Association of Schools of Social Work |
| English | eng-000 | International Association of Science Parks |
| English | eng-000 | International Association of Scientific Experts in Tourism |
| English | eng-000 | International Association of Seed Crushers |
| English | eng-000 | International Association of Seismology and Physics of the Earth’s Interior |
| English | eng-000 | International Association of Sound Archives |
| English | eng-000 | International Association of State Trading Organizations of Developing Countries |
| English | eng-000 | International Association of Students in Agricultural and Related Sciences |
| English | eng-000 | International Association of Students in Economics and Management |
| English | eng-000 | International Association of Survey Statisticians |
| English | eng-000 | International Association of Synthesis |
| English | eng-000 | International Association of Teachers of Russian Language and Literature |
| English | eng-000 | International Association of Technology Assessment and Forecasting Institutions |
| English | eng-000 | International Association of Testing Materials |
| English | eng-000 | International Association of Theatre Critics |
| English | eng-000 | International Association of Theoretical and Applied Limnology |
| English | eng-000 | International Association of the Soap and Detergent Industry |
| English | eng-000 | International Association of the Third Age Universities |
| English | eng-000 | International Association of Trading Organizations for a Developing World |
| Deutsch | deu-000 | International Association of Universities |
| English | eng-000 | International Association of Universities |
| English | eng-000 | International Association of University Presidents |
| English | eng-000 | International Association of University Professors and Lecturers |
| English | eng-000 | International Association of Volcanology and Chemistry of the Earth’s Interior |
| English | eng-000 | International Association of Women and Home Page Journalists |
| English | eng-000 | International Association of Women in Radio and Television |
| English | eng-000 | International Association of Women Ministers |
| français | fra-000 | International Association of Women Ministers |
| English | eng-000 | International Association of Women Philosophers |
| English | eng-000 | International Association of Workers for Maladjusted Children |
| English | eng-000 | International Association of Youth Magistrates |
| English | eng-000 | International Association on Water Pollution Research |
| English | eng-000 | international assurances |
| English | eng-000 | International Astronautical Congress |
| suomi | fin-000 | International Astronautical Congress |
| English | eng-000 | International Astronautical Congress of IAF |
| Deutsch | deu-000 | International Astronautical Federation |
| English | eng-000 | International Astronautical Federation |
| Lëtzebuergesch | ltz-000 | International Astronomesch Unioun |
| English | eng-000 | International Astronomical Union |
| suomi | fin-000 | International Astronomical Union |
| English | eng-000 | International Astronomical Youth Camp |
| français | fra-000 | International Astronomical Youth Camp |
| italiano | ita-000 | International Astronomical Youth Camp |
| English | eng-000 | International Astronomy Olympiad |
| English | eng-000 | international atmospheric interference |
| Lëtzebuergesch | ltz-000 | International Atomenergie Agence |
| English | eng-000 | International Atomic Development Authority |
| Deutsch | deu-000 | International Atomic Energy Agency |
| English | eng-000 | International Atomic Energy Agency |
| bahasa Indonesia | ind-000 | International Atomic Energy Agency |
| CycL | art-285 | InternationalAtomicEnergyAgency |
| čeština | ces-000 | International Atomic Energy Agency IAEA |
| Universal Networking Language | art-253 | International Atomic Energy Agency(pof>General Assembly of United Nations) |
| English | eng-000 | International Atomic Energy List |
| English | eng-000 | International Atomic Time |
| English | eng-000 | International atomic time |
| English | eng-000 | international atomic time |
| English | eng-000 | internationalatomic time |
| English | eng-000 | international atomic weight |
| English | eng-000 | international atomic weight table |
| English | eng-000 | International Auditing and Assurance Standards Board |
| English | eng-000 | International Auditing Guidelines |
| English | eng-000 | International Auditing Practices Committee |
| français | fra-000 | International Auditing Practices Committee |
| română | ron-000 | Internaționala Umanistă |
| English | eng-000 | international authority |
| English | eng-000 | International Authority for the Ruhr |
| English | eng-000 | International Autonomous Port of Djibouti |
| CycL | art-285 | InternationalAuxiliaryLanguage |
| English | eng-000 | international auxiliary language |
| Deutsch | deu-000 | International Auxiliary Language Association |
| English | eng-000 | International Auxiliary Language Association |
| magyar | hun-000 | International Auxiliary Language Association |
| interlingua | ina-000 | International Auxiliary Language Association |
| italiano | ita-000 | International Auxiliary Language Association |
| polski | pol-000 | International Auxiliary Language Association |
| svenska | swe-000 | International Auxiliary Language Association |
| English | eng-000 | International Avenue |
| English | eng-000 | International Award Association |
| English | eng-000 | International Baby Food Action Network |
| Esperanto | epo-000 | International Baby Food Action Network |
| English | eng-000 | International Baccalaureat |
| Deutsch | deu-000 | International Baccalaureate |
| English | eng-000 | International Baccalaureate |
| suomi | fin-000 | International Baccalaureate |
| Nederlands | nld-000 | International Baccalaureate |
| nynorsk | nno-000 | International Baccalaureate |
| ภาษาไทย | tha-000 | International Baccalaureate |
| svenska | swe-000 | International Baccalaureate Diploma Programme |
| English | eng-000 | International Baccalaureate Office |
| English | eng-000 | International Baccalaureate Organization |
| suomi | fin-000 | International Baccalaureate -tutkinto |
| dansk | dan-000 | international balance |
| English | eng-000 | international balance of payment |
| English | eng-000 | international balance of payments |
| English | eng-000 | International Baltic Sea Fishery Commission |
| English | eng-000 | International Bank |
| čeština | ces-000 | International Bank Account Number |
| Deutsch | deu-000 | International Bank Account Number |
| English | eng-000 | International Bank Account Number |
| français | fra-000 | International Bank Account Number |
| italiano | ita-000 | International Bank Account Number |
| Nederlands | nld-000 | International Bank Account Number |
| español | spa-000 | International Bank Account Number |
| svenska | swe-000 | International Bank Account Number |
| English | eng-000 | International Bank for Economic Cooperation |
| English | eng-000 | International Bank for Industrial Development |
| Universal Networking Language | art-253 | International Bank for Reconstruction and Development |
| English | eng-000 | International Bank for Reconstruction and Development |
| English | eng-000 | international banking |
| English | eng-000 | International Banking Act |
| English | eng-000 | International Banking Campaign against South Africa |
| français | fra-000 | International Banking Campaign against South Africa |
| English | eng-000 | International Banking Facilities |
| English | eng-000 | international banking statistics |
| Deutsch | deu-000 | International Baptist Convention |
| English | eng-000 | International Baptist Convention |
| English | eng-000 | International Bar Association |
| Deutsch | deu-000 | International Bartenders Association |
| English | eng-000 | International Bartenders Association |
| italiano | ita-000 | International Bartenders Association |
| Nederlands | nld-000 | International Bartenders Association |
| English | eng-000 | International Baseball Federation |
| English | eng-000 | International Basic Safety Standards for Protection against Ionizing Radiation and for the Safety of Radiation Sources |
| English | eng-000 | International Basic Training Course on State Systems of Accounting for and Control of Nuclear Materials |
| English | eng-000 | International Basketball Association |
| français | fra-000 | International Basketball Association |
| English | eng-000 | International Basketball Federation |
| English | eng-000 | International Basketball League |
| français | fra-000 | International Basketball League |
| English | eng-000 | International Bathymetric Chart of the Arctic Ocean |
| English | eng-000 | International Bathymetric Chart of the Caribbean Sea and the Gulf of Mexico |
| English | eng-000 | International Bathymetric Chart of the Central Eastern Atlantic |
| English | eng-000 | International Bathymetric Chart of the Mediterranean |
| English | eng-000 | International Bathymetric Chart of the Western Indian Ocean |
| English | eng-000 | International Bathymetric Chart of the Western Pacific |
| English | eng-000 | International Bauxite Association |
| English | eng-000 | International Beekeeping Technology and Economy Institute |
| Deutsch | deu-000 | international bekannt |
| English | eng-000 | International Biathlon Union |
| italiano | ita-000 | International Biathlon Union |
| svenska | swe-000 | International Biathlon Union |
| Deutsch | deu-000 | International Bible Society |
| English | eng-000 | International Bible Society |
| English | eng-000 | International Bibliography on Capital Punishment |
| English | eng-000 | international bid |
| English | eng-000 | international bidding |
| English | eng-000 | international bids |
| English | eng-000 | international bilateral instrument |
| English | eng-000 | International Bill of Human Rights |
| English | eng-000 | International Bioethics Committee |
| English | eng-000 | International Biofuels Forum |
| Deutsch | deu-000 | International Biographical Centre |
| English | eng-000 | International Biographical Centre |
| English | eng-000 | International Biological Program |
| English | eng-000 | International Biological Programme |
| čeština | ces-000 | International Biological Programme IBP |
| English | eng-000 | International biological reference preparation |
| English | eng-000 | International Biology Olympiad |
| English | eng-000 | International Biosciences Network |
| English | eng-000 | International Biosphere-Geosphere Programme |
| English | eng-000 | International Biosphere Reserve Congress |
| English | eng-000 | International Biotechnology Forum |
| dansk | dan-000 | international bistand |
| English | eng-000 | international blood group |
| English | eng-000 | International Blue Crescent Relief and Development Foundation |
| français | fra-000 | International Blue Crescent Relief and Development Foundation |
| español | spa-000 | International Blue Crescent Relief and Development Foundation |
| English | eng-000 | International Bluegrass Music Association |
| français | fra-000 | International Board |
| português | por-000 | International Board |
| English | eng-000 | International Board for Plant Genetic Resources |
| čeština | ces-000 | International Board for Plant Genetic Resources IBPGR |
| English | eng-000 | International Board for Soil Research and Management |
| English | eng-000 | International Board of Cooperation for the Developing Countries |
| English | eng-000 | International Board on Books for Young People |
| bokmål | nob-000 | International Board on Books for Young People |
| English | eng-000 | international body |
| English | eng-000 | International Bognor Birdman |
| English | eng-000 | international bond |
| English | eng-000 | international bond market |
| English | eng-000 | international bonds |
| English | eng-000 | International Book Fair |
| English | eng-000 | International Booksellers Federation |
| English | eng-000 | International Book Year |
| English | eng-000 | International Border |
| English | eng-000 | international border dispute |
| English | eng-000 | International Border Police Unit |
| English | eng-000 | International Boreal Forest Research Association |
| English | eng-000 | International Botanical Congress |
| English | eng-000 | international boundary |
| English | eng-000 | International Boundary and Water Commission |
| English | eng-000 | International Boundary Research Unit |
| English | eng-000 | International Bovine Meat Agreement |
| English | eng-000 | International Bowl |
| français | fra-000 | International Bowl |
| English | eng-000 | International Boxing Association |
| English | eng-000 | International Boxing Council |
| polski | pol-000 | International Boxing Council |
| Deutsch | deu-000 | International Boxing Federation |
| English | eng-000 | International Boxing Federation |
| polski | pol-000 | International Boxing Federation |
| svenska | swe-000 | International Boxing Federation |
| dansk | dan-000 | International Boxing Hall of Fame |
| English | eng-000 | International Boxing Hall of Fame |
| français | fra-000 | International Boxing Hall of Fame |
| English | eng-000 | International Boxing Organization |
| français | fra-000 | International Boxing Organization |
| polski | pol-000 | International Boxing Organization |
| English | eng-000 | International Brain Research Organization |
| English | eng-000 | international brand |
| English | eng-000 | International Brazilian Jiu-Jitsu Federation |
| português | por-000 | International Brazilian Jiu-Jitsu Federation |
| English | eng-000 | international bribery |
| English | eng-000 | International Bridge, Tunnel and Turnpike Association |
| English | eng-000 | International Briefing on South Africa’s First Democratic and Non-racial Elections |
| English | eng-000 | International Brigades |
| English | eng-000 | international broadcast |
| Deutsch | deu-000 | International Broadcast Centre |
| English | eng-000 | International Broadcast Centre |
| português | por-000 | International Broadcast Centre |
| English | eng-000 | international broadcasting |
| Deutsch | deu-000 | International Broadcasting Bureau |
| English | eng-000 | International Broadcasting Bureau |
| polski | pol-000 | International Broadcasting Bureau |
| português | por-000 | International Broadcasting Bureau |
| español | spa-000 | International Broadcasting Bureau |
| English | eng-000 | International Broadcasting Corp. |
| English | eng-000 | International Broadcasting Organization |
| English | eng-000 | International Broadcasting Union |
| English | eng-000 | international broadcast relay |
| English | eng-000 | International broadcast station |
| English | eng-000 | International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers |
| English | eng-000 | International Brotherhood of Electrical Workers |
| English | eng-000 | International Brotherhood of Firemen and Oilers |
| Deutsch | deu-000 | International Brotherhood of Magicians |
| English | eng-000 | International Brotherhood of Magicians |
| English | eng-000 | International Brotherhood of Painters and Allied Trades |
| Deutsch | deu-000 | International Brotherhood of Teamsters |
| français | fra-000 | International Brotherhood of Teamsters |
| English | eng-000 | International Brotherhood of Teamsters v. Daniel |
| English | eng-000 | International Bruckner Society |
| English | eng-000 | International Buddhist College |
| English | eng-000 | International Buddhist Relief Organisation |
| français | fra-000 | International Buddhist Relief Organisation |
| español | spa-000 | International Buddhist Relief Organisation |
| English | eng-000 | International Buddhist Temple |
| English | eng-000 | International Bulk Chemical Code |
| English | eng-000 | International Bureau |
| English | eng-000 | International Bureau for Declarations of Death |
| English | eng-000 | International Bureau for Epilepsy |
| français | fra-000 | International Bureau for Epilepsy |
| español | spa-000 | International Bureau for Epilepsy |
| English | eng-000 | International Bureau for the Revolutionary Party |
| English | eng-000 | International Bureau of Economy and Work |
| Deutsch | deu-000 | International Bureau of Education |
| English | eng-000 | International Bureau of Education |
| Nederlands | nld-000 | International Bureau of Education |
| polski | pol-000 | International Bureau of Education |
