

| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| HEDSIM | High Endoatmospheric Defense System Simulator | In English | → Computer simulation → Military engineering | 
| HEDSIM | High Endoatmospheric Event-Based Simulation | In English | → Computer simulation | 
| HEDW | Hortus - Eendracht Doet Winnen | In Dutch | → Organizations and associations → Sport, physical exercises | 
| HEEC | École des Hautes Études Économiques et Commerciales de Marrakech (www.ecoleheec.ac.ma) | In French | → Specialized or polytechnical colleges → Economics → Trade → Morocco | 
| HEF | Hispana Esperanto-Federacio (www.esperanto.es/hef/) = FEE | Federación Española de Esperanto | In Spanish | In Esperanto | → Organizations and associations → Artificial languages (linguistics) → Spain | 
| HEFCE | Higher Education Funding Council for England (www.hefce.ac.uk) | In English | → Education → United Kingdom | 
| HEg- | Helium Gauge | In English | |
| HEg-V | Helium Gauge Valve | In English | |
| HEGEL | Histoire, Enjeux Globaux, Écomobilité Locale | In French | → Transport and postal services | 
| HEGI | Higher Education General Information | In English | → Education | 
| HEGRA | High-Energy-Gamma-Ray Astronomy | In English | → Astronomy | 
| HEI | Hautes Études Industrielles | In French | → Specialized or polytechnical colleges → Engineering, technology | 
| HEJ | Hungara Esperanto-Junularo = MIESZ | Magyar Ifjúsági Eszperantó Szövetség | In Hungarian | In Esperanto | → Associations → Artificial languages (linguistics) → Hungary | 
| HEJ | Hungarian Electronic Journal of Sciences | In English | → Serial publications, periodicals → Mathematics and natural sciences → Hungary | 
| HEJS | Hispana Esperantista Junulara Societo (www.esperanto.es/joven/) | In Esperanto | → Organizations and associations → Artificial languages (linguistics) → Spain | 
| HEK | Hispana Esperanto-Kongreso | In Esperanto | → Congresses → Artificial languages (linguistics) → Spain | 
| HEL | High-Energy Laser | In English | → Optics → Electromagnetism | 
| HeLa | Henrietta Lacks | In English | |
| HELCUSS | High-Energy Laser Computerized Unmanned Space | In English | → Optics | 
| HELF | High-Energy Laser Fluence | In English | → Optics | 
| HELIOS | Het Eendrachtig Leven Is Ons Streven | In Dutch | → Organizations and associations → Sport, physical exercises | 
| HELLP | Hemolysis, Elevated Liver enzymes and Low Platelet count | In English | → Diagnostics → Blood and circulatory system → Pathology → Enzymes | 
| HELM | Hypertextual Electronic Library of Mathematics | In English | → Libraries → Data → Mathematics | 
| HelOB | Helwan Institute of Astronomy and Geophysics Bulletins | In English | → Serial publications, periodicals → Astronomy → Geophysics | 
| HELSTF | High Energy Laser Systems Test Facility | In English | → Optics | 
| HEM | Institut des Hautes Études de Management (www.hem.ac.ma) | In French | → Specialized or polytechnical colleges → Computer science → Morocco | 
| HEM | Hitchhike Experiment Module | In English | |
| HEM | Hrvatska Esperantska Mladež = KEJA | Kroata Esperanto-Junulara Asocio | In Esperanto | In Croatian | → Organizations and associations → Artificial languages (linguistics) | 
| HEm-V | Helium Manual Valve | In English | |
| HEMA | Hollandsche Eenheidsprijzen Maatschappij Amsterdam (www.hema.nl) | In Dutch | → Trade → Netherlands | 
| HemD | Hemel en Dampkring | In Dutch | → Serial publications, periodicals → Astronomy | 
| HEMT | High Electron Mobility Transistor | In English | → Electronics | 
| HEO | High Earth Orbit | In English | → Astronomy → Astronautics | 
| HEO | High-Energy Orbit | In English | → Astronomy → Astronautics | 
| HEOO | Honeywell Electro-Optical Operations | In English | → Electrical engineering | 
| HEOR | Historical Event Operation Record | In English | → Records management → Engineering, technology | 
| HEOS | High Endo Designator Sensor | In English | |
| HEPA | High-Efficiency Particle Accumulator | In English | |
| HEPA | High-Efficiency Particle Air | In English | |
| HEPNP | High Energy Physics and Nuclear Physics | In English | → Serial publications, periodicals → Nuclear, atomic, and molecular physics | 
| HER | Human Epidermal growth factor Receptor | In English | → Biochemistry, biophysics | 
| HER | HIM Equipment Rack | In English | |
| HER | Hydroxyethylrutoside | In English | → Biochemistry, biophysics | 
| HERA | Hermes Robotic Arm | In English | |
| HERI | Higher Education Research Institute (www.heri.ucla.edu) | In English | → Research institutes → Higher education, universities → United States | 
| HERISSON | Habile Extraction du Renseignement d'Intérêt Stratégique à partir de Sources Ouvertes Numérisées | In French | → Software → Military affairs | 
| HERO | Health Economics in Radiation Oncology | In English | → Public health and hygiene → Oncology | 
| HERSCP | Hazardous Exposure Reduction and Safety Criteria Plan | In English | → Accidents, risks, safety | 
| HERT | Headquarters Emergency Relocation Team | In English | |
| HERV | Human Endogenous RetroVirus | In English | → Virology → Infectious diseases | 
| HES | Hrvatska Europska Stranka | In Croatian | → Political parties and movements | 
| HESC | Hemispheric Energy Steering Committee = CDEH | Comité Directivo para la Energía del Hemisferio | In Spanish = CDEH | Comité Directeur pour l'Énergie dans l'Hémisphère | In French = CDEH | Comitê Diretor para a Energia do Hemisfério | In Portuguese | In English | → International economic cooperation → Energy economics | 
| HESCA | Health Sciences Communications Association (www.hesca.org) | In English | → Associations → Medicine | 
| HESP | Higher Education Support Program | In English | → Specialized or polytechnical colleges → Higher education, universities | 
| HESS | Hydrology and Earth System Sciences | In English | → Serial publications, periodicals → Hydrology | 
| HESS | High-Energy Squib Simulator | In English | → Computer simulation → Physics | 
| HESS | High Energy Stereoscopic System | In English | → Observatories | 
| HESSD | Hydrology and Earth System Sciences Discussions | In English | → Serial publications, periodicals → Hydrology | 
| HESSO | Haute École Spécialisée de Suisse Occidentale | In French | → Specialized or polytechnical colleges → Switzerland | 
| HET | Hypothèse extraterrestre = ETH | Extraterrestrial hypothesis | In English | In French | → Mathematics and natural sciences | 
| HETE | High Energy Transient Explorer | In English | → Astronautics → Astronomy | 
| HEU | High Enriched Uranium | In English | → Nuclear technology | 
| HEW | Hindu Kush Environmental Watch | In English | → Environmental protection | 
| HEW | Hamburgische Elektrizitätswerkstatt | In German | → Electrical engineering | 
| HF | Hair Follicle | In English | → Anatomy | 
| HF | Human Factors | In English | |
| HF | High Frequency | In English | |
| HF | Horizontal Flight | In English | → Aeronautics, aircraft → Astronautics | 
| HF | Hot Firing | In English | |
| HF | Hydrogen Fill | In English | |
| HF | Hydrogen Fluoride | In English | → Chemistry → Chemicals | 
| HF/DF | Hydrogen Fluoride/Deuterium Fluoride | In English | → Chemistry → Chemicals | 
| HFA | Hoogfunctionerend Autisme = AHN | Autisme à Haut Niveau de fonctionnement | In French = HFA | High-Functioning Autism | In English = HFO | Hoogfunksionerende Outisme | In Afrikaans = AAF | Autisme d'Alt Funcionament | In Catalan = AAF | Autismo de Alto Funcionamiento | In Spanish = AAF | Autismo de Alta Funcionalidade | In Portuguese | In Dutch | → Psychology → Developmental psychology → Neurology | 
| HFA | Holzforschung Austria (www.holzforschung.at) | In German | → Research institutes → Forestry → Austria | 
| HFA | High-Frequency Accelerometer | In English | |
| HFA | Haemophilia Foundation Australia (www.haemophilia.org.au) | In English | → Foundations → Blood and circulatory system → Pathology → Australia | 
| HFA | High-Functioning Autism = AHN, HFO, AAF (look above) | In English | → Psychology → Developmental psychology → Neurology | 
| HFC | Historians Film Committee | In English | → Organizations and associations → Cinema, movies → History | 
| HFC | Heat Flow and Convection | In English | → Thermodynamics | 
| HFC | Hydraulic Flight Control | In English | → Aeronautics, aircraft → Astronautics | 
| HFC | Haarlemsche Football Club | In Dutch | → Organizations and associations → Football and rugby | 
| HFCL | Hydraulic Flight Control Laboratory | In English | → Research institutes → Aeronautics, aircraft → Astronautics | 
| HFCS | High-Fructose Corn Syrup | In English | → Beverage industry → Food technology | 
| HFCT | Hydraulic Flight Control Test | In English | → Aeronautics, aircraft → Astronautics | 
| HFCV | Helium Flow Control Valve | In English | → Mechanical engineering | 
| HFCV | Hydrogen Fuel Cell Vehicle | In English | → Energy economics → Automobile manufacturing | 
| HFCW | Hydrogen Fluoride Continuous Wave | In English | |
| HFDP | Human Factors Development Plan | In English | |
| HFDS | Hydrogen Fluid Distribution System | In English | |
| HFE | High-Frequency Executive | In English | |
| HFE | Human Factors Engineering | In English | → Human-computer interaction | 
| HFEA | Human Fertilisation and Embryology Authority | In English | → Gynaecology → Reproductive biology | 
| HFES | Human Factors and Ergonomics Society | In English | → Organizations and associations → Human-computer interaction | 
| HFMP | Human Factors Management Plan | In English | → Management → Human-computer interaction | 
| HFMU | High-Fidelity Mockup | In English | |
| HFO | High-Frequency Oscillator | In English | |
| HFO | Hoogfunksionerende Outisme = HFA, AHN, AAF (look above) | In Afrikaans | → Psychology → Developmental psychology → Neurology | 
| HFP | Hardened Focal Plane | In English | → Optics | 
| HFP | Hydrogen and Fuel Cell Platform (www.hfpeurope.org) | In English | → Organizations and associations → Energy economics | 
| HFP | Hydrogen and Fuel Cell Technology Platform | In English | → Energy economics → Vehicle engineering | 
| HFPA | Hollywood Foreign Press Association (www.goldenglobes.org) | In English | → Associations → Newspapers, journalism → Cinema, movies | 
| HFpEF | Heart Failure with preserved Ejection Fraction | In English | → Cardiology | 
| HFRA | High-Frequency Recovery Antenna | In English | → Telecommunications | 
| HFRW | High-Frequency Resistance Welding | In English | |
| HFS | High-Fidelity Simulator | In English | |
| HFS | Horizontal Flight Simulator | In English | → Aeronautics, aircraft → Astronautics | 
| HFS | Hyperfine Structure | In English | |
| HFT | Horizontal Flight Test | In English | → Aeronautics, aircraft → Astronautics | 
| HFTE | Human Factors Test and Engineering | In English | → Engineering, technology | 
| HFTF | Horizontal Flight Test Facility | In English | → Aeronautics, aircraft → Astronautics | 
| HFTS | Horizontal Flight Test Simulator | In English | → Aeronautics, aircraft → Astronautics | 
| HFX | High-Frequency Transceiver | In English | → Telecommunications | 
| HG | High Gain | In English | → Telecommunications | 
| HGA | Histoire Générale de l'Afrique | In French | → Serial publications, periodicals → History | 
| HGA | High-Gain Antenna | In English | → Telecommunications | 
| HgA1c | Hemoglobin A1c | In English | → Proteins → Blood and circulatory system | 
| HGAS | High-Gain Antenna System | In English | → Telecommunications | 
| HGB | Handelsgesetzbuch | In German | → Commercial law | 
| HGc-Dt-E | Mercury-Cadmium-Telluride | In English | → Chemistry → Chemical technology | 
| HGDS | Hazardous Gas Detection System | In English | |
| HGE | Handbook of Geophysical Exploration | In English | → Serial publications, periodicals → Geophysics | 
| HGeo | History of Geophysics | In English | → Serial publications, periodicals → Geophysics → History | 
| HGF | Helmholtz-Gemeinschaft Forschungszentren (https://www.helmholtz.de/) | In German | → Research institutes → Research policy → Germany | 
| HGF | Hepatocyte Growth Factor | In English | → Biochemistry, biophysics | 
| HGM | Heeresgeschichtliches Museum (www.hgm.or.at) | In German | → Museums → Military affairs → Austria | 
| HGM | Hot-Gas Manifold | In English | |
| HGP | Human Genome Project | In English | → Genetics | 
| HGPO | HyperGlycémie Provoquée par voie Orale | In French | → Endocrinology → Nutrition | 
| HGS | Hydrogen Gas Saver | In English | |
| HGSC | Human Genome Sequencing Center | In English | → Genetics | 
| HGSS | Hrvatska Građansko Seljačka Stranka | In Croatian | → Political parties and movements | 
| HGT | Human Gene Therapy | In English | → Serial publications, periodicals → Genetics | 
| HGV | Hydrogen Gas Valve | In English | |
| HGVT | Horizontal Ground Vibration Test | In English | → Acoustics | 
| HGVV | Haagsche Gymnasiasten Voetbal Vereeniging | In Dutch | → Organizations and associations → Football and rugby | 
| HGW | Heat Generating Waste | In English | → Nuclear technology | 
| HH | Hedgehog | In English | → Proteins | 
| HH | Hitchhiker | In English | |
| HHC | Hardenberg Heemse Combinatie | In Dutch | → Organizations and associations → Sport, physical exercises | 
| HHC | Headquarters and Headquarters Company | In English | |
| HHG | Household Goods | In English | |
| HHI | Heinrich-Hertz-Institut (www.hhi.fraunhofer.de) | In German | → Research institutes → Telecommunications → Germany | 
| HHMI | Howard Hughes Medical Institute | In English | → Medicine | 
| HHMU | Hand-Held Maneuvering Unit | In English | |
| HHN | Hors Horaires Normaux | In French | → Labour, labour economics | 
| HHV | Human Herpesvirus | In English | → Virology → Infectious diseases | 
| HHV | Help Hospitalized Veterans (www.hhv.org) | In English | → Organizations and associations → Medicine | 
| HI | Hjälpmedelsinstitutet | In Swedish | |
| HI | Heure Imputée | In French | → Labour, labour economics | 
| HiA | Highlights of Astronomy | In English | → Serial publications, periodicals → Astronomy | 
| HIAD | Handbook of Information for Aircraft Designers | In English | → Aeronautics, aircraft | 
| HIAD | High-Altitude Defense Program | In English | → Military affairs → Military engineering → Aeronautics, aircraft | 
| HIB | Höhere Internatsschule des Bundes | In German | → 371 | 
| HIBREL | High-Brightness Relay | In English | |
| HIC | Hardware Integration Contractor | In English | → Computer hardware | 
| HIC | Horaire Individuel Concerté | In French | → Personnel management | 
| HICAMP | Highly Calibrated Airborne Measurements Program | In English | → Aeronautics, aircraft | 
| HID | Himalayan Institute of Development | In English | → Development | 
| HID | Hardware Interface Device | In English | → Computer hardware → Human-computer interaction | 
| HID | HIM Interface Distributor | In English | → Human-computer interaction | 
| HIDS | Host-based Intrusion Detection System | In English | → Software → Networks, communication | 
| HIE | Health Ingredient Europe | In English | |
| HIES | Hartutako Immuno Eskasiaren Sindromea = AIDS | Acquired Immune Deficiency Syndrome | In English = SIDA | Syndrome d'Immuno-Déficience Acquise | In French = VIGS | Verworwe Immuniteitsgebreksindroom | In Afrikaans = SIDA | Síndrome de Inmuno-Deficiencia Adquirida | In Occitan = SIDA | Sindromo di Imuno-Defekteso Aquirita | In Ido = AIDS | Akirita Imuno-Deficita Simptomaro | In Esperanto = SIDA | Sindrome d'inmunodefizienzia aquirita | In Aragonese = СПИН | Синдром на придобитата имунна недостатъчност | In Bulgarian = QİÇS | Qazanılmış İmmun Çatışmazlığı Sindromu | In Azerbaijani = SIDA | Síndrome d'Immunodeficiència Adquirida | In Catalan = SIDA | Síndrome de Inmunodeficiencia Adquirida | In Spanish = SEIF | Siondróm Easpa Imdhíonachta Faighte | In Irish = AIDS | Annlochd Inneamh Dìon-Slàinte | In Scottish Gaelic = ՁԻԱՀ | Ձեռքբերովի Իմունային Անբավարվածության Համախտանիշ | In Armenian = SCDI | Syndromis Comparatis Defectu Immunitatis | In Latin = 에이즈 | 후천성 면역 결핍 증후군 | In Korean = შიდსი | შეძენილი იმუნური დეფიციტის სინდრომი | In Georgian = СИДА | Синдромот на стекнат имунолошки дефицит | In Macedonian = СИДА | синдром стеченог имунолошког дефицита | In Serbian = AIDS | Akvirírani imúnski deficítni sindróm | In Slovenian = СПИД | Синдром приобретённого иммунного дефицита | In Russian = SIDA | Sindromul Imunodeficienţei Autodobândite | In Romanian = UHCW | Unquy hark'aypa chaskisqa waqlliynin | In Quechua = SIDA | Síndrome da imunodeficiência adquirida | In Portuguese = AIDS | Hội chứng Suy giảm Miễn dịch Mắc phải | In Vietnamese = СНІД | Cиндром набутого імунодефіциту | In Ukrainian = AIDS | Alınğan İmmun Defisit Síndromı | In Tatar = UKIMWI | Upungufu wa Kinga Mwilini | In Swahili | In Basque | → Immunology and allergy → Infectious diseases | 
| HIFIP | Harvard Islamic Finance Information Program | In English | → Islam → Finance | 
| HIFU | High Intensity Focused Ultrasound | In English | → Surgery, orthopaedics, ophthalmology | 
| HIGED | Handbook of Instructions for Ground Equipment Designers | In English | → Applied sciences, technology | 
| HiGEM | High Resolution Global Environmental Modelling (www.higem.nerc.ac.uk) | In English | → Computer simulation → Threats to the environment → Earth sciences | 
| HIK | Hejmoj de Internacia Kulturo | In Esperanto | → Civilization, culture, progress | 
| HIL | Hardware In Loop | In English | → Computer hardware | 
| HILS | Hardware-In-The-Loop Simulation | In English | → Computer hardware | 
| HIM | Hardware Interface Module | In English | → Human-computer interaction → Computer hardware | 
| HIMAT | History of Mining Activities in the Tyrol | In English | → History → Mining → Austria | 
| HiMAT | Highly Maneuverable Aircraft Technology | In English | → Aeronautics, aircraft | 
| HINARI | Health InterNetwork Access to Research Initiative | In English | → Medicine | 
| HION | Hollandia Is Onze Naam | In Dutch | → Organizations and associations → Sport, physical exercises → Netherlands | 
| HIP | Hardware Interface Panel | In English | → Human-computer interaction → Computer hardware | 
| HIP | Hardware Interface Processor | In English | → Computer hardware → Human-computer interaction | 
| HIP | Hardware Interface Program | In English | → Human-computer interaction → Computer hardware | 
| HIP | Hot Isostatic Press | In English | → Applied sciences, technology | 
| HIP | Hrvatski Istinski Preporod | In Croatian | → Political parties and movements | 
| HIPAA | Health Insurance Portability and Accountability Act | In English | → Law, jurisprudence → Medicine | 
| HIPO | Hierarchical Input-Process Output | In English | → Computer science | 
| HIPRC | Harborview Injury Prevention and Research Center (http://depts.washington.edu/hiprc/) | In English | → Research institutes → Law, jurisprudence | 
| HIR | Hologram Image Register | In English | → Libraries → Optics | 
| HIr-AP | High-Resolution Accelerometer Package | In English | |
| HiRDLS | High Resolution Dynamics Limb Sounder | In English | |
| HIRIJW | Hadassah International Research Institute on Jewish Women | In English | → Research institutes → Judaism → Social sciences | 
| HIRIS | High Resolution Imaging Spectrometer | In English | → Physics → Analytical chemistry | 
| HIRS | High Resolution Infrared Radiation Sounder | In English | |
| HISTU | Hypermediale Informationssystem für die Technische Universität Wien | In German | → Computer science → Higher education, universities → Austria | 
| HiTec | High Technology | In English | → Serial publications, periodicals → Engineering, technology | 
| HITS | Hierarchical Integrated Test Simulator | In English | |
| HITS | High-Rate Multiplexer Input and Output Test System | In English | |
| HITS | Hyperlink-Induced Topic Search | In English | → Internet → Computer-based techniques → Linguistics | 
| HIU | Headset Interface Unit | In English | |
| HIV | Human Immunodeficiency Virus = VIH | Virus de l'Immunodéficience Humaine | In French = VIH | Virus d'Inmunodeficencia Humana | In Asturian = VIH | Vírus da imunodeficiência humana | In Portuguese = VIDH | Virus Immunitarii Defectus Humanae | In Latin = ŽIV | Žmogaus Imunodeficito Virusas | In Lithuanian = ХИВ | Хумане имунодефицијенције | In Serbian = MIV | Menslike Immuniteitsgebreksvirus | In Afrikaans = HIV | Humani Imunodeficientni Virus | In Slovenian = ВИЧ | Вирус иммунодефицита человека | In Russian = GIB | Giza Immunoeskasiaren Birusa | In Basque = HIV | Humaan Immunodeficiëntie Virus | In Dutch | In English | → Virology → Immunology and allergy → Infectious diseases | 
| HIV | Helium Isolation Valve | In English | |
| HIV | Humani Imunodeficientni Virus = VIH, VIDH, ŽIV, ХИВ, MIV, ВИЧ, GIB (look above) | In Slovenian | → Virology → Immunology and allergy → Infectious diseases | 
| HIV | Humaan Immunodeficiëntie Virus = VIH, VIDH, ŽIV, ХИВ, MIV, ВИЧ, GIB (look above) | In Dutch | → Virology → Immunology and allergy → Infectious diseases | 
| HIVA | Hoger Instituut voor de Arbeid | In Dutch | → Labour, labour economics |