| Acronym | Sense | Language | Topics |
|---|---|---|---|
| ISAA | Institute of Asian and African Studies | In English | → Area studies |
| ISAE | Internacia Scienca Asocio Esperantista | In Esperanto | → Associations → Mathematics and natural sciences → Artificial languages (linguistics) |
| ISAE | Institut des Sciences Appliquées et Économiques | In French | → Specialized or polytechnical colleges → Economics |
| ISAE | Institut Supérieur de l'Aéronautique et de l'Espace (www.isae.fr) | In French | → Specialized or polytechnical colleges → Aeronautics, aircraft → Astronautics → France |
| ISAF | International Security Assistance Force | In English | → International relations |
| ISAFIS | Indonesian Student Association for International Studies | In English | → Associations → Higher education, universities |
| ISAI | Institute of Scrap Recycling Industries (www.isri.org) | In English | → Organizations and associations → Environmental technology, water supply, waste management → Electronics |
| ISAMS | Improved Stratospheric and Mesospheric Sounder | In English | → Earth sciences |
| ISAR | Inverse Synthetic-Aperture Radar | In English | |
| ISAS | Institute of Space and Astronautical Science (www.isas.jaxa.jp) | In English | → Research institutes → Astronomy → Astronautics → Japan |
| ISAS | Institut für Sensor- und Aktuatorsysteme | In German | → Electronics |
| ISAT | Institut Spécialisé d'Aviation et de Tourisme (www.isat.ma) | In French | → Specialized or polytechnical colleges → Tourism → Transport and postal services → Morocco |
| ISATS | Integration Spacecraft Automated Test System | In English | → Astronautics |
| ISAZ | International Society for Anthrozoology | In English | → Organizations and associations → Zoology |
| ISB | Independent Side Band | In English | |
| ISBL | Institution(s) sans but lucratif | In French | → Organizations and associations |
| ISBLSM | Institutions Sans But Lucratif au Service des Ménages | In French | → Organizations and associations |
| ISBN | International Standard Book Number | In English | → Libraries → Standardization |
| ISBRv | International Space Business Review | In English | → Serial publications, periodicals → Astronomy → Astronautics |
| ISBS | Internationales Symposium für Biomechanik im Sport | In German | → Congresses → Biological sciences → Sport, physical exercises |
| ISBST | Institut Supérieur de Biotechnologie de Sidi Thabet (www.isbst.rnu.tn) | In French | → Specialized or polytechnical colleges → Biotechnology → Tunisia |
| ISC | Industrial Support Contractor | In English | |
| ISC | Information Systems Center | In English | → Data → Knowledge management |
| ISC | Institut des Sciences Cognitives | In French | → Biological sciences → Neurology |
| ISC | Inspectoratul de Stat în Construcţii | In Romanian | |
| ISC | Ingense Sport Club | In Dutch | → Organizations and associations → Sport, physical exercises |
| ISC | International Seismological Centre (www.isc.ac.uk) | In English | → Research institutes → Seismology, earthquakes → United Kingdom |
| ISCAE | Institut Supérieur de Commerce et d'Administration des Entreprises | In French | → Specialized or polytechnical colleges → Trade |
| ISCAR | International Society for Cultural and Activity Research | In English | → Organizations and associations → Social sciences → Civilization, culture, progress |
| ISCC | Information Systems Coordination Committee = CCSI | Comité de Coordinación de los Sistemas de Información | In Spanish = CCSI | Comité de Coordination des Systèmes d'Information | In French = CCSI | Comitê de Coordenação de Sistemas de Informação | In Portuguese |
In English | → Knowledge management → United Nations |
| ISCCB | Internal Software Change Control Board | In English | → Software |
| ISCCP | International Satellite Cloud Climatology Project (http://isccp.giss.nasa.gov) | In English | → Astronautics → Meteorology, climatology |
| ISCED | International Standard Classification of Education | In English | → Standardization → Education |
| ISCIR | Inspecţia de Stat pentru Controlul Cazanelor, Recipientelor sub Presiune şi Instalaţiilor de Ridicat | In Romanian | |
| ISCM | Initial Software Configuration Map | In English | → Software |
| ISCN | Institut de Chimie des Substances Naturelles | In French | → Chemistry → Chemical technology |
| ISCO | International Standard Classification of Occupations | In English | → Standardization → Labour, labour economics |
| ISCOM | Institut Supérieur de Communication et Publicité | In French | → Higher education, universities → 659 |
| ISCOS | Istituto Sindacale per la Cooperazione allo Sviluppo | In Italian | → Organizations and associations → Development |
| ISCPA | Institut Supérieur de la Communication, de la Presse et de l'Audiovisuel | In French | → Newspapers, journalism → Higher education, universities → 659 → Arts |
| ISCTVBANDO | Inspecţia de Stat pentru Controlul Tehnic Vitivinicol şi al Băuturilor Alcoolice Naturale cu Denumiri de Origine | In Romanian | → Agricultural sciences |
| ISD | Internacia Sciencista Dokumentaro | In Esperanto | → Libraries → Mathematics and natural sciences |
| ISD | International Society of Differentiation | In English | → Organizations and associations → Biological sciences |
| ISD | Inspection Supervision Disposition | In English | |
| ISD | Instruction Sequence Diagram | In English | |
| ISD | Instructional Systems Design | In English | |
| ISD | Instructional Systems Development | In English | |
| ISDB | Integrated Services Digital Broadcasting | In English | → Telecommunications |
| ISDF | Istarski Socijaldemokratski Forum | In Croatian | → Political parties and movements |
| ISDN | Integrated Services Digital Network | In English | → Telecommunications |
| ISDN | Institut des Sciences du Document Numérique (http://isdn.enssib.fr) | In English | → Research institutes → Libraries → Document processing → France |
| ISDNS | Istarska Socijaldemokratska Nezavisna Stranka | In Croatian | → Political parties and movements |
| ISDP | International Society for Developmental Psychobiology (www.isdp.org) | In English | → Organizations and associations → Developmental psychology → Biological sciences |
| iSDP | information Systems Designated Procurement (http://isdp.nih.gov) | In English | → Software |
| ISDP | Iraq Sustainable Democracy Project (www.iraqdemocracyproject.org) | In English | → Democracy |
| ISDP | Independent Studies Degree Program | In English | → Education |
| ISDP | Institute for Security & Development Policy (www.isdp.eu) | In English | → Research institutes → Politics → Development → Europe |
| ISDP | IntelliLight Shared Dual Path | In English | → Networks, communication → Telecommunications |
| ISDP | International Society of Dermatopathology (www.intsocdermpath.org) | In English | → Organizations and associations → Dermatology |
| ISDX | Interactive Surface Design eXtension | In English | → Software → Engineering, technology |
| ISE | Internacia Semajnfino Esperantista | In Esperanto | → Congresses → Artificial languages (linguistics) |
| ISE | Institut Syndical Européen | In French | → Organizations and associations → Labour, labour economics |
| ISE | Istituto per lo Studio degli Ecosistemi | In Italian | → Threats to the environment |
| ISE | Iniziative Sviluppo Energie | In Italian | → Energy economics → Electrical engineering |
| ISEAS | Institute of Southeast Asian Studies | In English | → Area studies |
| ISEC | Institute for Social and Economic Change | In English | → Politics → Economics |
| ISECOM | Institute for Security and Open Methodologies (www.isecom.org) | In English | → Organizations and associations → Computer science |
| ISED | Institute for the Study of Education and Human Development | In English | → Research institutes → Education |
| ISEE | International Sun-Earth Explorer | In English | → Astronomy → Earth sciences |
| ISEEES | Institute of Slavic, East European, and Eurasian Studies | In English | → Research institutes → Area studies |
| ISEGI | Instituto Superior de Estatística e Gestão de Informação | In Portuguese | → Research institutes → Statistics |
| ISEM | Institut des Sciences de l'Évolution de Montpellier | In French | → Research institutes → Biological sciences → France |
| ISEM | Institut des Sciences de l'Entreprise de Montpellier (www.isem.univ-montp1.fr) | In French | → Specialized or polytechnical colleges → Trade → Accounting → France |
| ISEM | Institut Supérieur d'Études Maritimes (www.isem.ac.ma) | In French | → Specialized or polytechnical colleges → Transport and postal services → Morocco |
| ISEN | Institut Supérieur d'Électronique et du Numérique | In French | → Computer-based techniques → Electronics |
| ISEO | International Sustainable Energy Organisation | In English | → Energy economics |
| ISEP | Isolated/Stabilized Exercise Platform | In English | |
| ISEP | Institut Supérieur d'Électronique de Paris (www.isep.fr) | In French | → Specialized or polytechnical colleges → Electrical engineering → France |
| ISER | Institute for Social and Economic Research | In English | → Research institutes → Demography, statistics, sociology → Economics |
| ISES | International Solar Energy Society | In English | → Energy economics |
| ISESAO | Istituto di Studi Economico-Sociali per l'Asia Orientale | In Italian | → Politics → Economics |
| ISET | Institut für Solare Energieversorgungstechnik | In German | → Energy economics |
| ISETEC | Innovative Seehafentechnologien | In German | → 627 |
| ISF | Ingénieurs Sans Frontières | In French | → Organizations and associations → Engineering, technology |
| ISF | Impôt Sur la Fortune | In French | → Taxes, duties |
| ISF | Industrial Space Facility | In English | → Astronomy → Astronautics |
| ISFC | International Baltic Sea Fishery Commission (www.ibsfc.org) | In English | → International relations → Fishing, hunting |
| ISFE | International Society of Facilities Executives | In English | → Organizations and associations |
| ISFiT | Internasjonale Studentfestivalen i Trondheim | In Norwegian | → Higher education, universities → Norway |
| ISFORT | Institut Supérieur de Formation en Technologie Alimentaire (www.isfort.ac.ma) | In French | → Specialized or polytechnical colleges → Food technology → Morocco |
| ISFOTEG | Institut Supérieur de Formation aux Techniques de Gestion (www.isfoteg.net.ma) | In French | → Specialized or polytechnical colleges → Economics → Morocco |
| ISFP | International Society for Fibrinolysis and Proteolysis | In English | → Organizations and associations → Biochemistry, biophysics |
| ISFTA | Institute for Solid Fuels Technology and Applications | In English | → Vehicle engineering |
| ISG | Indonesia Study Group | In English | → Area studies |
| ISG | Intervention de Sécurité Gaz | In French | → Energy economics |
| ISG | Institut Supérieur de Gestion | In French | → Specialized or polytechnical colleges → Management |
| ISG | Îlot Saint-Germain | In French | → Geography |
| ISGC | Institut Supérieur de Gestion et de Commerce | In French | → Specialized or polytechnical colleges → Trade |
| ISGSS | Indonesian Studies Graduate Summer School | In English | → Higher education, universities → Area studies |
| ISH | Institut des Sciences de l'Homme | In French | → Research institutes → Social sciences → France |
| ISH | International Society of Hypertension (https://www.ish-world.com) | In English | → Research institutes → Cardiology |
| ISH | Institut des Sciences Historiques | In French | → Organizations and associations → History → 929731 → France |
| ISH | Insert Sarcasm Here | In English | → Linguistics |
| ISH | Isolated Systolic Hypertension | In English | → Cardiology |
| ISH | In Situ Hybridization | In English | → Genetics → Biochemistry, biophysics |
| ISH | International Sanitation and Heating (http://https://ish.messefrankfurt.com/) | In English | → Congresses → Environmental technology, water supply, waste management → Germany |
| ISH | The International School of The Hague (https://www.ishthehague.nl) | In English | → Education → Netherlands |
| ISH | Information Superhighway | In English | → Internet |
| ISH | International Society for Hypnosis (https://www.ishhypnosis.org) | In English | → Organizations and associations → Psychology → Psychiatry |
| ISH | Irish Sport Horse | In English | → Mammals → Sport, physical exercises |
| ISHA | Integrated System Hazard Analysis | In English | |
| ISHEASTM | International Society for the History of East Asian Science Technology and Medicine | In English | → Organizations and associations → History → Medicine → Engineering, technology |
| ISHMN | Institut Supérieur d'Histoire du Mouvement National | In French | → History |
| ISHR | Interstate Home Slot Racing | In English | → Automobile manufacturing |
| ISHR | Institute for Health System Research | In English | → Public health and hygiene |
| ISHS | International Society for Horticultural Science | In English | → Organizations and associations → Horticulture |
| ISI | International Sensitivity Index | In English | |
| ISI | Initial Systems Installation | In English | → Engineering, technology |
| ISI | Instrumentation Support Instruction | In English | |
| ISI | Integral Satcom Initiative | In English | → Astronautics |
| ISIAM | Institut Supérieur d'Informatique Appliquée et de Management (www.isiam.ma) | In French | → Specialized or polytechnical colleges → Computer science → Computer science → Morocco |
| ISIAO | Istituto italiano per l'Africa e l'Oriente (www.isiao.it) | In Italian | → Organizations and associations → Italia |
| ISIC | Institut Supérieur de l'Information et de la Communication (www.isic.ac.ma) | In French | → Specialized or polytechnical colleges → 659 → Morocco |
| ISIL | Interim Support Items List | In English | |
| ISIM | International Institute for the Study of Islam in the Modern World | In English | → Islam |
| ISIMA | Institut Supérieur d'Informatique, de Modélisation et de leurs Applications | In French | → Computer science → Computer-based techniques |
| ISIMS | Institut Supérieur d'Informatique et de Multimédia de Sfax (www.isimsf.rnu.tn) | In French | → Higher education, universities → Computer science → Tunisia |
| ISIO | Informativno Svetovalna dejavnost v Izobraževanju Odraslih | In Slovenian | → Education |
| ISIR | Institut des Systèmes Intelligents et Robotique | In French | → Research institutes → Mechanical engineering → Electronics |
| ISIR | International Society for Intelligence Research | In English | → Organizations and associations → Neurology |
| ISIR | International Society for Interferon-Research | In English | → Organizations and associations → Biochemistry, biophysics → Medicine |
| ISIR | Institut für Statistik und internationale Registrierungen | In German | → Research institutes → Statistics |
| ISIR | Institut des Systèmes Intelligents et de Robotique (www.isir.upmc.fr) | In French | → Research institutes → Artificial intelligence → Electronics |
| ISIR | International Society for Immunology of Reproduction | In English | → Organizations and associations → Immunology and allergy → Reproductive biology |
| ISIR | Institute of Scientific and Industrial Research | In English | → Research policy → Engineering, technology |
| ISIREMM | Integrated System for Intelligent Regional Environmental Monitoring and Management | In English | → Environmental protection → Threats to the environment |
| ISIRI | Institute of Standards and Industrial Research of Iran | In English | → Standardization → Research policy |
| ISIS | (Malaysia) Institute of Strategic and International Studies | In English | → International relations |
| ISIS | Institute of Security and International Studies | In English | → International relations → Polemology |
| ISIS | Institute of Software Technology and Interactive Systems | In English | → Software |
| ISIS | Institut für Softwartechnik und Interaktive Systeme | In German | → Organizations and associations → Software → Human-computer interaction |
| ISIS | Integrated Safety Information System | In English | → Data → Knowledge management |
| ISIS | Istituto di Studi per l'Integrazione dei Sistemi | In Italian | → Mathematics and natural sciences |
| ISIS | Ingénierie des Systèmes d'Information et de Sécurité | In French | → Computer science → Telecommunications |
| ISIS | International Society of Infant Studies | In English | → Organizations and associations → Education → Pediatry |
| ISIS | Intranet Sécurisé Interministériel pour la Synergie gouvernementale | In French | → Networks, communication → Central administration |
| IsJT | Israel Journal of Technology | In English | → Serial publications, periodicals → Engineering, technology |
| ISK | Internacia Scienca Kolegio | In Esperanto | → Mathematics and natural sciences |
| ISKCON | International Society for Krishna Consciousness = AICK | Association Internationale pour la Conscience de Krishna | In French |
In English | → Associations → Indian religions → Modern spiritual movements |
| ISKZ | Issledovaniya Solntsa i Krasnykh Zvezd | In Russian | → Serial publications, periodicals |
| ISL | Inertial Systems Laboratory | In English | → Research institutes → Mechanical engineering |
| ISL | Institut de Sondages Lavialle | In French | → Statistics |
| ISL | International Sign Language | In English | → Linguistics |
| ISLM | Integration Shop and Lab Manager | In English | |
| ISM | ISDN (Integrated Services Digital Network) Standards Management | In English | → Networks, communication → Telecommunications |
| ISM | Institut Supérieur Maritime | In French | → Specialized or polytechnical colleges → Marine research, oceanography → 627 → Vehicle engineering |
| ISM | Image Steering Mirror | In English | |
| ISM | Institut des Sciences Moléculaires | In French | → Research institutes → Biochemistry, biophysics |
| ISM | International School of Management (www.ism.edu) | In English | → Specialized or polytechnical colleges → Management |
| ISMB | Istituto Superiore Mario Boella | In Italian | |
| ISMCS | International Society for Mechanical Circulatory Support (https://www.ismcs.org) = ISRBP | International Society for Rotary Blood Pumps | In English |
In English | → Organizations and associations → Mechanical engineering → Blood and circulatory system → Cardiology |
| ISME | International Symposium on Microbial Ecology | In English | → Congresses → Ecology |
| ISME | Irish Small and Medium Enterprises | In English | → Organizations and associations → Economic policy |
| IsMEO | Istituto Italiano per il Medio ed Estremo Oriente | In Italian | → Organizations and associations → Area studies → Italia |
| ISMN | International Standard Music Number | In English | → Documentation → Music |
| ISMP | Institut Supérieur de Management Public | In French | → Management → Public administration, government |
| ISMRB | Information Systems Management Review Board | In English | → Data → Knowledge management |
| ISMS | Interactive Supply Management System | In English | → Management |
| ISN | Innovation Service Network GmbH (www.innovation.at) | In English | → Engineering, technology → Austria |
| ISN | Indonesian Studies Newsletter | In English | → Serial publications, periodicals → Area studies |
| ISN | Internal Statement Number | In English | |
| ISN | Internal Social Networking | In English | |
| ISNHB | Institut des Sciences de la Nature - Université des Sciences et de la Technologie Haouari Boumediene | In French | → Higher education, universities |
| ISO | Imaging Spectrometic Observatory | In English | → Observatories → Analytical chemistry |
| ISO | Infrared Space Observatory | In English | → Astronautics → Astronomy |
| ISO | International Standardization Organization | In English | → Standardization → Organizations and associations |
| ISO | Infection du Site Opératoire | In French | → Infectious diseases → Surgery, orthopaedics, ophthalmology |
| ISO | Indemnité de Suivi et d'Orientation | In French | → Personnel management → Public administration, government → Education |
| ISOA | Information Security Officer's Assistant | In English | → Software |
| ISOC | Internet Society | In English | → Internet → Organizations and associations |
| ISOPT | International Symposium on Ocular Pharmacology and Therapeutics | In English | → Congresses → Pharmacology, toxicology → Ophthalmology |
| ISOSA | Independent Scholars of South Asia | In English | |
| ISP | International Standardized Profile | In English | → Standardization |
| ISP | Internet Service Provider | In English | → Telecommunications → Internet |
| ISP | Instrumentation Support Plan | In English | → Engineering, technology |
| ISP | Integrated Space PLan | In English | |
| ISP | Integrated Support Plan | In English | |
| ISP | Instytut Studiów Politycznych | In Polish | → Research institutes → Politics |
| ISP | Infirmier Sapeur-Pompier | In French | → Medicine → Firefighting |
| ISPA | Instrument Structurel de Préadhésion | In French | → International relations → European Union |
| ISPF | Institut de la Statistique de Polynésie française (www.ispf.pf) | In French | → Central administration → Statistics |
| ISPF | Internet Service Providers' Forum | In English | → Organizations and associations → Internet |
| ISPF | Interactive System Productivity Facility | In English | → Computer science → Operating systems |
| ISPG | International Society of Psychiatric Genetics | In English | → Organizations and associations → Genetics → Psychiatry |
| ISPG | Institutional Support Planning Group | In English | |
| ISPG | Information Services Procurement Group | In English | → Telecommunications |
| ISPI | Istituto di Studi di Politica Internazionale | In Italian | → International relations |
| ISPL | IEEE (Institute of Electrical and Electronics Engineers) Signal Processing Letters | In English | → Serial publications, periodicals → Telecommunications |
| ISPL | Institut Pierre-Simon Laplace (des Sciences de l'Environnement Global) | In French | → Threats to the environment |
| ISPL | Information Services Procurement Library | In English | → Telecommunications |