| Acronym | Sense | Language | Topics |
|---|---|---|---|
| IJPR | International Journal of Production Research | In English | → Serial publications, periodicals → Engineering, technology |
| IJQE | IEEE (Institute of Electrical and Electronics Engineers) Journal of Quantum Electronics | In English | → Serial publications, periodicals → Electronics |
| IJRA | IEEE (Institute of Electrical and Electronics Engineers) Journal of Robotics Automation | In English | → Serial publications, periodicals → Electrical engineering |
| IJRQS | International Journal of Reliability, Quality and Safety Engineering | In English | → Serial publications, periodicals → Engineering, technology |
| IJRR | International Journal of Robotics Research | In English | → Serial publications, periodicals → Electrical engineering → Electronics |
| IJRS | International Journal of Remote Sensing | In English | → Serial publications, periodicals |
| IJSAC | IEEE (Institute of Electrical and Electronics Engineers) Journal on Selected Areas in Communications | In English | → Serial publications, periodicals → Telecommunications |
| IJSC | International Journal of Satellite Communications | In English | → Serial publications, periodicals → Astronautics → Telecommunications |
| IJSE | International Journal of Solar Energy | In English | → Serial publications, periodicals → Energy economics |
| IJSSC | IEEE (Institute of Electrical and Electronics Engineers) Journal of Solid-State Circuits | In English | → Serial publications, periodicals → Electronics |
| IJT | Index Jisim Tubuh = IMC | Indice de Masse Corporelle | In French = BMI | Body Mass Index | In English = BKİ | Bədən kütləsinin göstərici | In Turkish = KMI | Keapa-Moss-Index | In Austro-Bavarian = IMC | Índex de Massa Corporal | In Catalan = ΔΜΣ | Δείκτης μάζας σώματος | EK = KMI | Korpomasa Indico | In Esperanto = IMC | Índice de Masa Corporal | In Spanish = KMI | Kehamassiindeks | In Estonian = IMC | Índice de Masa Corporal | In Galician = IMC | Indice di Massa Corporea | In Italian = KMI | Kūno Masės Indeksas | In Lithuanian = IMC | Índice de Massa Corporal | In Portuguese = ИМТ | Индекс массы тела | In Russian = VKİ | Vücut Kitle İndeksi | In Turkish |
In Malay | → Nutrition |
| IJTJE | International Journal of Turbo Jet Engines | In English | → Serial publications, periodicals → Vehicle engineering |
| IKEA | Ingvar Kamprad Elmtaryd Agunnaryd | In Swedish | → Timber and woodworking industry |
| IKMA | Industrielles Kompetenzzentrum für Mechatronik und Automation | In German | → Mechanical engineering |
| IKT | Informations- und Kommunikationstechnologie = TIC | Tecnologías de la Información y la Comunicación | In Spanish = TIC | Technologies de l'Information et de la Communication | In French = ICT | Information and Communications Technology | In English = IKT | Informations- og kommunikationsteknologi | In Danish = IKT | Inligtings- en kommunikasietegnologie | In Afrikaans = ICT | Informatie- en Communicatietechnologie | In Dutch = TMK | Teknologi Maklumat dan Komunikasi | In Malay = IKT | Informasjons- og kommunikasjonsteknologi | In Norwegian = TIC | Tecnologies de la Informació i la Comunicació | In Catalan = IKT | Informazio eta Komunikazio Teknologia | In Basque = TIC | Tecnologia dell'Informazione e della Comunicazione | In Italian = IKT | Informasjons- og kommunikasjonsteknologi | In Nynorsk |
In German | → Computer science → Telecommunications |
| IKT | Informations- og kommunikationsteknologi = TIC, ICT, TMK (look above) |
In Danish | → Computer science → Telecommunications |
| IKT | Inligtings- en kommunikasietegnologie = TIC, ICT, TMK (look above) |
In Afrikaans | → Computer science → Telecommunications |
| IKT | Informasjons- og kommunikasjonsteknologi = TIC, ICT, TMK (look above) |
In Norwegian | → Computer science → Telecommunications |
| IKT | Informazio eta Komunikazio Teknologia = TIC, ICT, TMK (look above) |
In Basque | → Computer science → Telecommunications |
| IKT | Informasjons- og kommunikasjonsteknologi = TIC, ICT, TMK (look above) |
In Nynorsk | → Computer science → Telecommunications |
| ILA | Instrument Landing Approach | In English | → Aeronautics, aircraft → Astronautics |
| ILA | Institut für Luftfahrtantriebe | In German | → Aeronautics, aircraft |
| ILAB | International League of Antiquarian Booksellers (www.ilab.org) | In English | → Organizations and associations → Trade → Graphic industries, printing, publishing |
| ILAE | International Ligue Against Epilepsy (www.ilae.org) | In English | → Organizations and associations → Neurology |
| ILAR | Institute for Laboratory Animal Research (http://dels.nas.edu/ilar/) | In English | → Organizations and associations → Pharmacology, toxicology → Veterinary medicine |
| ILAS | Instrument Landing Approach System | In English | → Aeronautics, aircraft → Astronautics |
| ILC | Initial Launch Capability | In English | → Astronautics |
| ILC | International Latex Company | In English | → Chemical technology |
| ILCSM | IEEE (Institute of Electrical and Electronics Engineers) LCS Magazine | In English | → Serial publications, periodicals → Telecommunications |
| ILEC | Incumbent Local Exchange Carrier | In English | → Telecommunications |
| ILERA | Internacia Ligo de Esperantistaj Radioamatoroj | In Esperanto | → Organizations and associations → Telecommunications → Artificial languages (linguistics) |
| ILERA | Internacia Ligo de Esperantistaj Radio-Amatoroj | In Esperanto | → Organizations and associations → Telecommunications → Artificial languages (linguistics) |
| ILFC | International Lease Finance Corporation | In English | → Finance → Transport by air |
| ILLW | Intermediate and Low Level Waste | In English | → Nuclear technology → Environmental technology, water supply, waste management |
| ILM | Institut für Laboratoriumsmedizin, Klinische Chemie und Molekulare Diagnostik | In German | → Research institutes → Biochemistry, biophysics → Pharmacology, toxicology → 6160 |
| ILM | Institut Louis Malardé | In French | → Medicine |
| ILRS | International Laser Ranging Service (http://https://ilrs.cddis.eosdis.nasa.gov/) | In English | → Astronautics → Geodesy, cartography |
| ILRV | Integral Launch and Reentry Vehicle | In English | → Astronautics |
| ILS | Instrument Landing System | In English | → Aeronautics, aircraft → Astronautics |
| ILSSE | Integrated Life Science Shuttle Experiment | In English | → Biological sciences → Astronautics |
| ILSSM | Israeli Society for Sexual Medicine | In English | → Organizations and associations → Sexual problems → Urology |
| ILT/RT | Imprecisely Located Target/Relocatable Target | In English | → Military engineering |
| ILTPE | Institute for Low Temperature Physics and Engineering = ФТИНТ | Физико-технический институт низких температур | In Russian = ФТІНТ | Фізико-технічний інститут низьких температур | In Ukrainian |
In English | → Physics → Engineering, technology |
| ILTS | IEEE (Institute of Electrical and Electronics Engineers) LTS | In English | → Serial publications, periodicals → Telecommunications |
| IM3 | Institut Mondor de Médecine Moléculaire | In French | → Biological sciences → Medicine |
| IMA | Integrated Microsystems Austria (www.ima-mst.at) | In English | → Mechanical engineering → Electronics → Austria |
| IMA | Information, Medien, Agrar | In German | → Newspapers, journalism → Agricultural sciences |
| IMA | Interdisciplinary Medical Association | In English | → Associations → Medicine |
| IMA | International Medical Association | In English | → Associations → Medicine |
| IMA | Innovation Makers Alliance | In English | → Organizations and associations → Economics → Engineering, technology |
| IMAI | Integrated Management of Adolescent and Adult Illness | In English | → Pathology |
| IMAS | Institutional Management Accounting System | In English | → Accounting |
| IMASSA | Institut de Médecine Aérospatiale - Service de Santé des Armées | In French | → Medicine → Aeronautics, aircraft → Astronautics |
| IMBA | Institute of Molecular Biotechnology of the Austrian Academy of Science (www.imba.oeaw.ac.at) | In English | → Research institutes → Biological sciences → Biotechnology → Austria |
| IMBA | Internationale Motorsport Bond voor Amateurs (www.imba-mx.com) | In Dutch | → Organizations and associations → Vehicle engineering → Transport and postal services |
| IMBLMS | Integrated Medical/Behavioral Laboratory Measurement | In English | → Medicine |
| IMC | Indice de Masse Corporelle = IJT, BMI, BKİ, KMI, ΔΜΣ, ИМТ, VKİ (look above) |
In French | → Nutrition |
| IMC | Instrument Meteorological Conditions | In English | → Aeronautics, aircraft → Meteorology, climatology |
| IMC | Índex de Massa Corporal = IJT, BMI, BKİ, KMI, ΔΜΣ, ИМТ, VKİ (look above) |
In Catalan | → Nutrition |
| IMC | Índice de Masa Corporal = IJT, BMI, BKİ, KMI, ΔΜΣ, ИМТ, VKİ (look above) |
In Spanish | → Nutrition |
| IMC | Índice de Masa Corporal = IJT, BMI, BKİ, KMI, ΔΜΣ, ИМТ, VKİ (look above) |
In Galician | → Nutrition |
| IMC | Indice di Massa Corporea = IJT, BMI, BKİ, KMI, ΔΜΣ, ИМТ, VKİ (look above) |
In Italian | → Nutrition |
| IMC | Índice de Massa Corporal = IJT, BMI, BKİ, KMI, ΔΜΣ, ИМТ, VKİ (look above) |
In Portuguese | → Nutrition |
| IMCHC | Illinois Maternal & Child Health Coalition (www.ilmaternal.org) | In English | → Organizations and associations → Gynaecology → Pediatry |
| IMCO | Intergovernmental Maritime Consultative Organization | In English | → Organizations and associations → International relations → 6295 → Transport and postal services |
| IMD | Immune Mediated Disease | In English | → Immunology and allergy |
| IME | Institut Méditerranéen de l'Eau | In French | → Hydrology → Environmental technology, water supply, waste management |
| IMEI | International Mobile Equipment Identity | In English | → Telecommunications |
| IMeRv | International Metals Reviews | In English | → Serial publications, periodicals → Metallurgy |
| IMF | Impianti Macchine Fonderia | In Italian | → Metallurgy |
| IMG | Interruption Médicale de Grossesse | In French | → Gynaecology → Obstetrics |
| IMGWL | IEEE (Institute of Electrical and Electronics Engineers) Microwave and Guided Wave Letters | In English | → Serial publications, periodicals → Telecommunications |
| IMI | Innovative Medicines Initiative | In English | → Medicine |
| IMI | International Materials Institutes | In English | → Research institutes → Materials science |
| IMIT | Institute for Management of Innovation and Technology | In English | → Management → Engineering, technology |
| IMLEO | Initial Mass in Low Earth Orbit | In English | → Astronomy → Astronautics |
| IMM | Institut des Mines de Marrakech (www.inpt.ac.ma) | In French | → Specialized or polytechnical colleges → Mining → Morocco |
| IMN | Instytut Metali Nieżelaznych (www.imn.gliwice.pl) | In Polish | → Research institutes → Metallurgy → Poland |
| IMO | International Maritime Organization = IMO | Internacia Mar-Organizo | In Esperanto = OMI | Organisation Maritime Internationale | In French |
In English | → International relations → Marine research, oceanography → 6295 → Agricultural sciences |
| IMO | Internacia Mar-Organizo = OMI (look above) |
In Esperanto | → International relations → Marine research, oceanography → 6295 → Agricultural sciences |
| IMP | Institute of Molecular Pathology | In English | → Biochemistry, biophysics → Pathology |
| IMP | Inflatable Micrometeoroid Paraglider | In English | → Astronomy → Astronautics |
| IMP/LMM | Ingénierie des Matériaux Polymères/ Laboratoire Matériaux Macromoléculaires | In French | → Research institutes → Materials science → Plastic industry |
| IMPACT | International Marketing and Promotional Activities | In English | → 6588 |
| IMPATT | IMPact ionization Avalanche Transit-Time | In English | → Electronics |
| IMPS | Instant Messaging and Presence Service | In English | → Telecommunications |
| IMR | Infant Mortality Rate = ММВБ | Московская межбанковская валютная биржа | In Russian = MICEX | Moscow Interbank Currency Exchange | In English = МБВБ | Мускав банксен валютă биржи | In Chuvash = AKB | Angka Kematian Bayi | In Indonesian = TMI | Taxa de Mortalidade Infantil | In Portuguese = TMI | Taux de Mortalité Infantile | In French = TMI | Taxa de Mortalitat Infantil | In Catalan |
In English | → Statistics → Pediatry |
| IMRSA | International Medical Regulatory and Shipping Association | In English | → Associations → Medicine |
| IMRv | International Materials Reviews | In English | → Serial publications, periodicals → Materials science |
| IMS | IP Multimedia Subsystem | In English | → Telecommunications → Computer science |
| IMS | Interplanetary Monitor Satellite | In English | → Astronomy → Astronautics |
| IMSI | International Mobile Subscriber Identity | In English | → Telecommunications |
| IMSI | Intracytoplasmic Magnified Sperm Injection | In English | → Reproductive biology |
| IMSO | International Mobile Satellite Organization | In English | → Associations → Astronautics → Telecommunications |
| IMSS | In-Flight Medical Supply System | In English | → Medicine → Aeronautics, aircraft → Astronautics |
| IMST3 | Innovation in Mathematics, Science and Technology Teaching | In English | → Education → Mathematics and natural sciences → Mathematics → Engineering, technology |
| IMT | Institutul Naţional de Cercetare-Dezvoltare pentru Microtehnologie | In Romanian | → Engineering, technology |
| IMT | Intima Media Thickness = EIM | Espace Intima Média | In French |
In English | → Blood and circulatory system → Cardiology |
| IMT | Institute of Tropical Medicine in Antwerp (www.itg.be) = ITG | Instituut voor Tropische Geneeskunde Antwerpen | In Dutch = ITM | Institut de Médecine Tropicale d'Anvers | In French |
In English | → Research institutes → Pathology → Belgium |
| IMT | Instituto Mauá de Tecnologia (www.maua.br) | In Portuguese | → Research institutes → Engineering, technology → Brazil |
| IMTS | Improved Mobile Telephone Service | In English | → Telecommunications |
| IN | Istituto di Neuroscienze | In Italian | → Anatomy → Neurology |
| INAA | Institut National Agronomique d'Alger | In French | → Specialized or polytechnical colleges → Agricultural sciences → Algeria |
| INADR | Institut National Agronomique pour le Développement Rural | In French | → Specialized or polytechnical colleges → Agricultural sciences |
| INAF | Institut des Nutraceutiques et des Aliments Fonctionnels | In French | → Nutrition → Agricultural sciences → Beverage industry → Food technology |
| INAMI | Institut National d'Assurance Maladie-Invalidité (www.riziv.fgov.be) = RIZIV | Rijksinstituut voor Ziekte- en Invaliditeitsverzekering | In Dutch |
In French | → Insurance → Medicine → Belgium |
| INAO | Institut National des Appellations d'Origine (www.inao.gouv.fr) | In French | → Central administration → Agricultural sciences → France |
| INAP | Intelligent Network Application Part | In English | → Networks, communication → Telecommunications |
| INASO | Institut National de Formation Supérieure en Agriculture Saharienne de Ouargla | In French | → Specialized or polytechnical colleges → Agricultural sciences |
| INATN | Institut National Agronomique de Tunisie | In French | → Specialized or polytechnical colleges → Agricultural sciences → Tunisia |
| INATS | Institut National Agronomique de Thiès | In French | → Specialized or polytechnical colleges → Agricultural sciences |
| INAV | Institut National Agronomique et Vétérinaire Hassen II | In French | → Specialized or polytechnical colleges → Agricultural sciences |
| INB | Installation Nucléaire de Base | In French | → Nuclear technology |
| INB | Institut des Neurosciences de Bordeaux | In French | → Research institutes → Neurology |
| INBO | International Network of Basin Organizations | In English | → 341224 → Hydrology → 626 → Engineering, technology |
| INCA | International Newspaper Colour Association | In English | → Associations → Newspapers, journalism → Graphic industries, printing, publishing |
| INCA | Institut National du Cancer | In French | → Organizations and associations → Oncology |
| INCA | INventaire des CAnalisations | In French | → Energy economics |
| INCAS | Institutul Naţional de Cercetare-Dezvoltare Aerospaţială | In Romanian | → Astronomy → Aeronautics, aircraft → Astronautics |
| INCASOL | Institut Català del Sòl | In Spanish | → Astronomy → Energy economics |
| INCDTP | Institutul Naţional de Cercetare-Dezvoltare pentru Textile şi Pielărie | In Romanian | → Textile industry |
| INCERC | Institutul Naţional de Cercetare - Dezvoltare în Construcţii şi Economia Construcţiilor | In Romanian | → Construction |
| INCERC | Institutul Naţional de Cercetare-Dezvoltare în Construcţii şi Economia Construcţiilor | In Romanian | → Civil engineering → Construction |
| INCITS | International Committee for Information Technology Standards | In English | → Standardization → Computer science → Telecommunications |
| INCO | Integrated Communications Officer | In English | → 653 |
| INCOPA | Inorganic Coagulants Producers Association (www.incopa.org) | In English | → Associations → Chemicals |
| IND | Investigational New Drug | In English | → Pharmacology, toxicology |
| IND | Investigational New Drug (application) | In English | → Pharmacology, toxicology |
| INDANA | Individual Data Analysis of Antihypertensive Drug Interventions | In English | → Pharmacology, toxicology |
| INEGA | Instituto Enerxético de Galicia | In Spanish | → Energy economics |
| INELEC | Institut National d'Électricité et d'Électronique | In French | → Specialized or polytechnical colleges → Electrical engineering → Electronics |
| INERIS | Institut National de l'Environnement Industriel et des Risques (www.ineris.fr) | In French | → Research institutes → Accidents, risks, safety → Engineering, technology → France |
| InES | Indian Academy of Sciences Proceedings: Engineering Sciences | In English | → Serial publications, periodicals → Engineering, technology → India |
| INES | International Nuclear Event Scale | In English | → Nuclear technology |
| InESS | Institut d'Électronique du Solide et des Systèmes (www-iness.c-strasbourg.fr) | In French | → Research institutes → Electronics → France |
| INESTENE | INstitut d'Évaluation des STratégies ENergétiques Européennes | In French | → Research institutes → Energy economics |
| INETI | Instituto Nacional de Engenharia e Tecnologia Industrial | In Portuguese | → Research institutes → Engineering, technology |
| InFer | Integrated Ferroelectrics | In English | → Serial publications, periodicals → Electrical engineering |
| INFM | Istituto Nazionale per la Fisica della Materia | In Italian | → Research institutes → Materials science → Italia |
| INFRAWEBS | Intelligent Framework for Generating Open (Adaptable) Development Platforms for Web - Service Enabled Applications | In English | → Software → Internet → Telecommunications |
| INFSB | Institut National de Formation Supérieure du Bâtiment | In French | → Specialized or polytechnical colleges → Construction |
| IngAr | Ingenieur Archiv | In German | → Serial publications, periodicals → Engineering, technology |
| InGe-St | Initiative Gehirnforschung Steiermark | In German | → Organizations and associations → Neurology → Austria |
| INGM | Institut National de Génie Mécanique | In French | → Specialized or polytechnical colleges → Mechanical engineering |
| INHC | Institut National des Hydrocarbures et Chimie | In French | → Specialized or polytechnical colleges → Chemical technology → Chemistry |
| INIA | Institut National des Industries Alimentaires | In French | → Specialized or polytechnical colleges → Beverage industry → Food technology |
| INIM | Institut National des Industries Manufacturières | In French | → Specialized or polytechnical colleges → 68 |
| INIS | International Nuclear Information System | In English | → Nuclear technology |
| INIST | Institut National d'Information Scientifique et Technique | In French | → Libraries → Mathematics and natural sciences |
| InJAE | Indian Journal of Aerospace Engineering Division | In English | → Serial publications, periodicals → Aeronautics, aircraft → Astronautics → India |
| INJENO | INitiatives de parents de Jeunes Épileptiques du Nord | In French | → Organizations and associations → Neurology |
| InJME | Indian Journal of Mechanical Engineering Division | In English | → Serial publications, periodicals → Mechanical engineering → India |
| INMARSAT | International Maritime Satellite | In English | → Marine research, oceanography → Astronautics |
| INMC | Institut National des Matériaux de Construction | In French | → Specialized or polytechnical colleges → Construction |
| INN | International Nonproprietary Name = DCI | Dénomination Commune Internationale | In French = DCI | Denominación Común Internacional | In Spanish = DCI | Denominazione Comune Internazionale | In Italian = МНН | Международное непатентованное название | In Russian |
In English | → Pharmacology, toxicology |
| INOE | Institutul Naţional de Cercetare-Dezvoltare pentru Optoelectronică | In Romanian | → Electronics |
| INP | Instituto Nacional de Pesca | In Spanish | → Vehicle engineering |
| INPE | Instituto de Pesquisas Espaciais | In Portuguese | → Astronomy → Astronautics |
| INPES | Institut National de Prévention et d'Éducation pour la Santé (www.inpes.sante.fr) | In French | → Education → Public health and hygiene → France |
| INPG | Institut National Polytechnique de Grenoble | In French | → Specialized or polytechnical colleges → Engineering, technology |
| INPMA | Institut National des Plantes Médicinales et Aromatiques | In English | → Research institutes → Biological sciences → Pharmacology, toxicology → Agricultural sciences |
| INPT | Institut National des Postes et Télécommunications | In French | → Specialized or polytechnical colleges → Postal services → Telecommunications → Morocco |
| INPT | Institut National Polytechnique de Toulouse | In French | → Specialized or polytechnical colleges → Engineering, technology |
| INRA | Institut National de la Recherche Agronomique (www.inra.fr) | In French | → Biological sciences → Zoology → Agricultural sciences → France |
| INRAA | Institut National de la Recherche Agronomique d'Algérie (www.inraa.dz) | In French | → Research institutes → Agricultural sciences → Algeria |
| INRETS | Institut National de Recherche sur les Transports et leur Sécurité | In French | → Research institutes → Transport and postal services → Vehicle engineering |
| INRIA | Institut National de Recherche en Informatique et en Automatique | In French | → Research institutes → Computer science → Mechanical engineering |
| INRIA | Institut National de Recherche en Informatique et Automatique | In French | → Research institutes → Computer science → Electrical engineering |
| INS | Inertial Navigation System | In English | → Aeronautics, aircraft |
| INSA | Institut National des Sciences Appliquées | In French | |
| INSAT | India Communications Satellite | In English | → Astronautics → Telecommunications → India |
| INSERM | Institut National de la Santé et de la Recherche Médicale | In French | → Medicine |
| INSERR | Institut National de Sécurité Routière et de Recherche | In French | → Transport and postal services |
| INSET | Institut National Supérieur de l'Enseignement Technique | In French | → Specialized or polytechnical colleges → Engineering, technology |
| INSG | Institut National de Sciences de Gestion | In French | → Specialized or polytechnical colleges → Management → Accounting |
| INSIGHT | Interior exploration using Seismic Investigations, Geodesy and Heat Transport | In English | → Astronautics → Planets and satellites → Seismology, earthquakes |
| INSPQ | Institut National de Santé Publique du Québec | In French | → Public health and hygiene → Canada |
| INSTAC | Information Technology Research and Standardization Center | In English | → Computer science → Telecommunications |
| INSTM | Institut National des Sciences et des Techniques Nucléaires | In French | → Research institutes → Nuclear, atomic, and molecular physics → Nuclear technology |
| INTA | Instituto Nacional de Técnica Aeroespacial (www.inta.es) | In Spanish | → Astronomy → Aeronautics, aircraft → Astronautics → Spain |
| INTAP | Interoperability Technology Association for Information Processing | In English | → Associations → Telecommunications → Computer-based techniques |
| INTBO | International Network of Transboundary Basin Organizations | In English | → 341224 → Hydrology → 626 → Engineering, technology |
| INTEC | Institut National des Techniques Économiques et Comptables (http://intec.cnam.fr) | In French | → Specialized or polytechnical colleges → Economics → Accounting → France |
| InTEEC | Information Technology and Electrical Engineering Consultant | In English | → Consulting → Computer science → Electrical engineering |
| InTEEC | Innovación Tecnológica Electrónica Estudiantil en Ciencias | In Spanish | → Mathematics and natural sciences → Electronics |
| INTEGRAL | INTErnational Gamma-Ray Astrophysics Laboratory | In English | → Astronautics → Astronomy |
| INTELSAT | International Telecommunications Satellite | In English | → Astronautics → Telecommunications |
| INTERLAND | Innovative Technologies for Remediation of Landfills and Contaminated Soils | In English | → Environmental protection → Threats to the environment → Biotechnology → Agricultural sciences |
| INTOSAI | International Organization of Supreme Audit Institutions | In English | → Organizations and associations → Accounting → 659 |
| INTPM | Institut National de Formation de Techniciens Supérieurs des Travaux Publics - Mostganem | In French | → Specialized or polytechnical colleges → Civil engineering |
| INTPO | Institut National de Formation de Techniciens Supérieurs des Travaux Publics - Ouargla | In French | → Specialized or polytechnical colleges → Civil engineering |
| IntSM | Interavia Space Markets | In English | → Serial publications, periodicals → Aeronautics, aircraft → Astronautics |
| INTSR | Itogi Nauki i Tekhniki Seriia Radiotekhnika | In Russian | → Serial publications, periodicals → Telecommunications |
| INVS | Institut National de Veille Sanitaire | In French | → Medicine |
| IO | Input/Output | In English | → Computer science → Engineering, technology |
| IOBA | Independent Online Booksellers Association (www.ioba.org) | In English | → Associations → Trade → Graphic industries, printing, publishing → Computer science |
| IOBM | In Ocean By Mistake | In English | → Astronautics |
| IOC | In-Orbit Checkout and Calibration | In English | → Astronautics |
| IOCA | Internacia Organizo pri Civila Aviado = ICAO | International Civil Aviation Organization | In English |
In Esperanto | → International relations → Aeronautics, aircraft → Transport and postal services |
| IOD | Initial Orbit Determination | In English | → Astronautics |