| EDCS | Electrical Distribution and Control System | In English | → Electrical engineering |
| EDDL | Electronic Device Description Language | In English | → Computer architecture → Hardware → Electronics |
| EDE | Elementos Decorativos Eléctricos (www.e-d-e.com) | In Spanish | → Electrical engineering |
| EDENOR | Empresa Distribuidora y Comercializadora Norte (www.edenor.com.ar) | In Spanish | → Electrical engineering |
| EDF | Engineering Data File | In English | → Data |
| EDF | Électricité de France (www.edf.fr) | In French | → Energy economics → Electrical engineering |
| EDF-T | Électricité de France-Trading | In French | → Finance → Electrical engineering |
| EDFI | Électricité de France International | In French | → Electrical engineering |
| EDIV | Engineering Design Intent Verification | In English | |
| EDL | Engineering Development Laboratory | In English | → Research institutes |
| EDLN | Engineering Development Logic Network | In English | |
| EDLS | Engineering Drawing Library System | In English | |
| EDM | Electrical Discharge Machining | In English | → Electrical engineering |
| EDM | Engineering Development Model | In English | |
| EDM | Énergie du Mali | In French | → Energy economics → Electrical engineering |
| EDM | Études et Développement Mécaniques | In French | → Mechanical engineering |
| EDO | Extended-Duration Orbiter | In English | → Spaceflight engineering, astronautics |
| EDO | Extended Duration Orbiter | In English | → Spaceflight engineering, astronautics |
| EDP | Electricidade de Portugal | In Portuguese | → Electrical engineering |
| EDP | Energias de Portugal | In Portuguese | → Energy economics → Electrical engineering |
| EDR | Engineering Design Review | In English | |
| EDROME | Exploration et exploitation Durable des Ressources Océaniques Minérales et Énergétiques | In French | → Energy economics → Mining |
| EDRS | European Data Relay Satellite | In English | → Data → Spaceflight engineering, astronautics → Telecommunications |
| EDS | Engineering Data System | In English | |
| EDS | Electrical Distribution System | In English | → Electrical engineering |
| EDS | Engineering Design System | In English | |
| EDS | Engineering Development Schedule | In English | |
| EE | Electrical Engineering | In English | → Electrical engineering |
| EEA | Energy Efficiency Agency | In English | → Energy economics |
| EEA | Électronique, Électrotechnique, Automatique | In French | → Electrical engineering → Electronics |
| EEC | Études et Économie de la Construction | In French | → Civil engineering → Building |
| EECA | European Electronic Component Manufacturers Association | In English | → Associations → Electronics |
| EEE | Electronic, Electrical, and Electromechanical | In English | → Mechanical engineering → Electrical engineering → Electronics |
| EEEU | End Effector Electronics Unit | In English | → Electronics |
| EEG | Energy Economics Group | In English | → Organizations and associations → Energy economics |
| EEG | Erdöl Erdgas Gommern GmbH | In German | → Energy economics → Chemical technology |
| EEG | Erneuerbare-Energien-Gesetz | In German | → Politics → Energy economics |
| EEI | Edison Electrical Institute (www.eei.org) | In English | → Organizations and associations → Electrical engineering |
| EEL | Electrical Equipment List | In English | → Electrical engineering |
| EEM | Earth Entry Module | In English | → Spaceflight engineering, astronautics |
| EEP | Electronic Equipment Package | In English | → Electronics |
| EEPCA | European Electrical Products Certification Association | In English | → Associations → Electrical engineering |
| EEPSEA | Economy and Environment Program for Southeast Asia | In English | → Economics → Environmental technology, water supply, waste management |
| EEQ | Erneuerbare Energiequelle | In German | → Energy economics |
| eERG | End-use Efficiency Research Group | In English | → Energy economics → Mechanical engineering |
| EERI | Estonian Energy Research Institute | In English | → Energy economics |
| EES | Ejection Escape Suit | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| EES | Emergency Ejection Suit | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| EES | Escape Ejection Suit | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| EES | Electronic Switching System(s) | In English | → Electronics |
| EET | Erneuerbare Energieträger | In German | → Energy economics |
| EETB | Electronic/Electrical Termination Building | In English | → Electrical engineering → Electronics |
| EEU | Extravehicular Excursion Unit | In English | → Spaceflight engineering, astronautics |
| EEV | Enhanced Environmentally friendly Vehicle | In English | → Vehicle engineering |
| EFA | Experiment Flight Application | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| EFC | European Fuel Cell | In English | → Energy economics → Vehicle engineering |
| EFDA | European Fusion Development Association (www.efda.org) | In English | → Associations → 53912 → Nuclear technology |
| EFESE | Économie, Fonctionnement et Études des Systèmes Énergétiques | In French | → Energy economics → Electrical engineering |
| EFF | Electronic Frontier Foundation | In English | → Foundations → Electronics |
| EFFI | Electronic Frontier Finland | In English | → Organizations and associations → Electronics |
| EFG | Energieforschungsgemeinschaft | In German | → Energy economics |
| EFOG | Elgin Franklin Oil & Gas Ltd | In English | → Energy economics → Chemical technology |
| EFP | ESA Furnished Property | In English | → Spaceflight engineering, astronautics |
| EFSSS | Engine Failure Sensing and Shutdown System | In English | → Vehicle engineering |
| EGEC | European Geothermal Energy Council | In English | → Energy economics |
| EGIL | Electrical, General Instrumentation, and Lighting | In English | → Electrical engineering |
| EGKS | Europese Gemêenschap voo Kooln en Stoal = EKSF | Europæiske Kul- og Stålfællesskab | In Danish = ESUO | Evropské společenství uhlí a oceli | In Czech = EZUČ | Europska zajednica za ugljen i čelik | In Croatian = CECA | Comunidad Europea del Carbón y del Acero | In Spanish = CECA | Communauté Européenne du Charbon et de l'Acier | In French = ECSC | European Coal and Steel Community | In English = ЕОВС | Европейската общност за въглища и стомана | In Bulgarian = CECA | Comunitat Europea del Carbó i de l'Acer | In Catalan = EGKS | Europäische Gemeinschaft für Kohle und Stahl | In German = CECA | Comunidade Europea do Carbón e do Aceiro | In Galician = CECA | Comunità Europea del Carbone e dell'Acciaio | In Italian = EWWiS | Europejska Wspólnota Węgla i Stali | In Polish = CECA | Comunautat Europèa del Carbon e de l'Acièr | In Occitan = EKSF | Det europeiske kull- og stålfellesskap | In Norwegian = EGKS | Europese Gemeenschap voor Kolen en Staal | In Dutch = ESZAK | Európai Szén- és Acélközösség | In Hungarian = CECA | Comunidade Europeia do Carvão e do Aço | In Portuguese = CECO | Comunitatea Europeană a Cărbunelui şi Oţelului | In Romanian = ЕОУС | Европейское объединение угля и стали | In Russian = ESUO | Európske spoločenstvo pre uhlie a ocel | In Slovak = EHYT | Euroopan hiili- ja teräsyhteisö | In Finnish = EKSG | Europeiska kol- och stålgemenskapen | In Swedish = EAPB | Europos anglių ir plieno bendrija | In Lithuanian |
In Vlaams | → International relations → International economic cooperation → Mining → Metallurgy |
| EGKS | Europese Gemeenschap voor Kolen en Staal = EKSF, ESUO, EZUČ, CECA, ECSC, ЕОВС, EWWiS, ESZAK, CECO, ЕОУС, EHYT, EKSG, EAPB (look above) |
In Dutch | → International relations → International economic cooperation → Mining → Metallurgy |
| EGKS | Europäische Gemeinschaft für Kohle und Stahl = EKSF, ESUO, EZUČ, CECA, ECSC, ЕОВС, EWWiS, ESZAK, CECO, ЕОУС, EHYT, EKSG, EAPB (look above) |
In German | → International relations → International economic cooperation → Mining → Metallurgy |
| EGSE | Electrical Ground Support Equipment | In English | → Electrical engineering |
| EHA | Electrohydraulic Actuator | In English | → Mechanical engineering → Electrical engineering |
| EHOT | External Hydrogen/Oxygen Tank | In English | → Spaceflight engineering, astronautics |
| EHP | Effective Horsepower | In English | → Mechanical engineering |
| EHP | Electrical Horsepower | In English | → Electrical engineering |
| EHTP | École Hassania des Travaux Publics | In French | → Specialized or (poly)technical colleges → Civil engineering → Building |
| EHYT | Euroopan hiili- ja teräsyhteisö = EGKS, EKSF, ESUO, EZUČ, CECA, ECSC, ЕОВС, EWWiS, ESZAK, CECO, ЕОУС, EKSG, EAPB (look above) |
In Finnish | → International relations → International economic cooperation → Mining → Metallurgy |
| EI | Energi Industrien | In German | → Industry, industrial policy → Energy economics |
| EI | Electronics Interface | In English | → Electronics |
| EIA | Electrical Industries Association (www.eia.org) | In English | → Associations → Electrical engineering |
| EIE | Équipements et Installations Électriques | In French | → Electrical engineering |
| EIfER | European Institute for Energy Research (www.eifer.uni-karlsruhe.de) | In English | → Research institutes → Energy economics → Electrical engineering |
| EIGSI | École d’Ingénieurs en Génie des Systèmes Industriels | In French | → Specialized or (poly)technical colleges |
| EIHP | Energy Institute Hrvoje Pozar | In English | → Energy economics |
| EIS | Electrical Integration System | In English | → Electrical engineering |
| EIUM | École d'Ingénieurs de l'Université de Maurice | In French | → Specialized or (poly)technical colleges |
| EIV | Energieinstitut Vorarlberg | In German | → Energy economics |
| EIVT | Electronic Installation Verification Test | In English | → Electronics |
| EIVT | Electrical and Instrumentation Verification Test | In English | → Electrical engineering |
| EIVT | Electrical Interface Verification Test | In English | → Electrical engineering |
| EJEE | European Journal of Engineering Education | In English | → Serial publications, periodicals → Education |
| EKSF | Det europeiske kull- og stålfellesskap = EGKS, ESUO, EZUČ, CECA, ECSC, ЕОВС, EWWiS, ESZAK, CECO, ЕОУС, EHYT, EKSG, EAPB (look above) |
In Norwegian | → International relations → International economic cooperation → Mining → Metallurgy |
| EKSF | Europæiske Kul- og Stålfællesskab = EGKS, ESUO, EZUČ, CECA, ECSC, ЕОВС, EWWiS, ESZAK, CECO, ЕОУС, EHYT, EKSG, EAPB (look above) |
In Danish | → International relations → International economic cooperation → Mining → Metallurgy |
| EKSG | Europeiska kol- och stålgemenskapen = EGKS, EKSF, ESUO, EZUČ, CECA, ECSC, ЕОВС, EWWiS, ESZAK, CECO, ЕОУС, EHYT, EAPB (look above) |
In Swedish | → International relations → International economic cooperation → Mining → Metallurgy |
| ElBah | Elektrische Bahnen | In German | → Serial publications, periodicals → Electrical engineering → Vehicle engineering |
| ELC | European Lighting Council | In English | → Organizations and associations → Electrical engineering → Environmental technology, water supply, waste management |
| ELCIDIS | ELectric CIty DIstribution System | In English | → Electrical engineering → Vehicle engineering |
| ELDO | European Launcher Development Organisation | In English | → Organizations and associations → Spaceflight engineering, astronautics |
| ELINT | Electronic Intelligence Satellite | In English | → Electronics → Spaceflight engineering, astronautics |
| ElL | Electronics Letters | In English | → Serial publications, periodicals → Electronics |
| ElLC | Electrotechnical Laboratory Circulars | In English | → Serial publications, periodicals → Electrical engineering |
| ElLR | Electrotechnical Laboratory Researches | In English | → Serial publications, periodicals → Electrical engineering |
| ElMod | Elektronnoe Modelirovanie = ElMod | Электронное моделирование | In Russian |
In Russian | → Serial publications, periodicals → Electrical engineering |
| ElMod | Электронное моделирование = (look above) |
In Russian | → Serial publications, periodicals → Electrical engineering |
| ELORA | Ermittlung des lokalen Radonpotentials | In German | → Environmental technology, water supply, waste management → Building |
| ElP | Electronics Power | In English | → Serial publications, periodicals → Electronics |
| ElPro | Electronic Progress | In English | → Serial publications, periodicals → Electronics |
| ELS | Eastern Launch Site | In English | → Spaceflight engineering, astronautics |
| ELSECOM | European Electrotechnical Sectoral Committee for Testing and Certification | In English | → Organizations and associations → Quality management → Electrical engineering |
| ElTA | Elektronnaia Tekhnika Avtomatike | In Russian | → Serial publications, periodicals → Mechanical engineering |
| ELV | Expendable Launch Vehicle | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| ELV | End-of-Life Vehicule | In French | → Vehicle engineering |
| ELV | Earth Launch Vehicle | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| ElWG | Elektrizitätswesengesetz | In German | → Energy economics → Electrical engineering |
| EM | Elektro-Material AG | In German | → 6212 |
| EM&IAS | Electromechanical and Integrated Avionics Subsystem | In English | → Mechanical engineering → Aeronautics, aircraft |
| EM&P | Energétique, Matériaux & Procédés | In French | → 620 → Energy economics |
| EMA | Electromechanical Actuator | In English | → Mechanical engineering → Electrical engineering |
| EMA | École des Mines d'Alès | In French | → Specialized or (poly)technical colleges |
| EMAA | État-Major de l'Armée de l'Air | In French | → Public administration, government → Military engineering → Aeronautics, aircraft |
| EMAT | État-Major de l'Armée de Terre | In French | → Public administration, government → Military engineering |
| EMC | Électro-Mécanique du Cinéma | In French | → Electrical engineering → Cinema, movies |
| EMC | Entreprise Minière et Chimique | In French | → Mining → Chemical technology |
| EMĈ | Esperantista Motorciklanta Ĉeno | In Esperanto | → Organizations and associations → Vehicle engineering |
| EMCEF | European Mine Chemical and Energy Workers Federation | In English | → Organizations and associations → Labour, labour economics → Energy economics → Mining |
| EMCI | Engineering Model Configuration Inspection | In English | |
| EMCIT | (Agreement Group for) European Testing of Electromagnetic Compatibility of IT Products | In English | → Quality management → Electronics → Telecommunications |
| EMD | École des Mines de Douai | In French | → Specialized or (poly)technical colleges |
| EMES | Electrical, Mechanical, and Environmental Systems | In English | → Electrical engineering → Mechanical engineering |
| EMI | École Mohammadia d'Ingénieurs | In French | → Specialized or (poly)technical colleges |
| EMLC | European Mask and Lithography Conference | In English | |
| EMM | École des Mines de Marrakech | In French | → Specialized or (poly)technical colleges → Mining |
| EMM | Electromechanical Mockup | In English | → Mechanical engineering → Electrical engineering |
| EMMA | Expert Missile Maintenance Aid | In English | → Military engineering → Maintenance and logistics |
| EMMA | Expert Missile Maintenance Aim | In English | → Military engineering → Maintenance and logistics |
| EMN | Engineering Management Network | In English | → Organizations and associations → Management |
| EMN | École des Mines de Nancy | In French | → Specialized or (poly)technical colleges |
| EMN | École des Mines de Nantes | In French | → Specialized or (poly)technical colleges |
| EMP | École des Mines de Paris | In French | → Specialized or (poly)technical colleges |
| EMPA | Eidgenössische Materialprüfungs- und Forschungsanstalt | In German | → 620 |
| EMPGS | Electromechanical Power Generation Subsystem | In English | → Mechanical engineering → Electrical engineering |
| EMPS | Electric Machines and Power Systems | In English | → Serial publications, periodicals → Energy economics → Electrical engineering |
| EMR | Eastern Missile Range | In English | → Military engineering |
| EMR | Engine Mixture Ratio | In English | → Vehicle engineering |
| EMR | Engine Mix Ratio | In English | → Vehicle engineering |
| EMS | Engineering Master Schedule | In English | |
| EMSE | École des Mines de Saint-Étienne | In French | → Specialized or (poly)technical colleges |
| EMU | Engineering Model Unit | In English | |
| EMU | Extravehicular Mobility Unit | In English | → Spaceflight engineering, astronautics |
| EMWA | Engineering Minor Work Authorization | In English | |
| EMWIS | Euro-Mediterranean Water Information System | In English | → Hydrology → 626 → 627 → Environmental technology, water supply, waste management |
| ENAC | École Nationale de l'Aviation Civile | In French | → Specialized or (poly)technical colleges → Spaceflight engineering, astronautics |
| ENAC | Ente Nazionale per l'Aviazione Civile | In Italian | → Aeronautics, aircraft → Transport and postal services |
| ENAC | Environnement Naturel Architectural et Construit | In French | → Nature and society → Regional planning → Environmental technology, water supply, waste management |
| EnAt | Energia és Atomtechnika | In Hungarian | → Serial publications, periodicals → Energy economics → Nuclear technology |
| ENATT | École Nationale d'Application des Techniques des Transports Terrestres | In French | → Specialized or (poly)technical colleges → Civil engineering and land transport → Vehicle engineering |
| EnBW | Energie Baden-Württemberg AG (www.enbw.com) | In German | → Energy economics → Electrical engineering |
| EnBW | Energie Baden-Würtemberg | In German | → Energy economics |
| EnC | Energy Conversion | In English | → Serial publications, periodicals → Energy economics |
| END | Énergie Non Distribuée | In French | → Electrical engineering |
| ENDESA | Empresa Nacional De Electricidad, SA | In Spanish | → Electrical engineering |
| ENEA | European Nuclear Energy Agency = AEEN | Agencia Europea para la Energía Nuclear | In Spanish |
In English | → Organizations and associations → Nuclear technology |
| ENEC | European Norms Electrical Certification | In English | → Standardization → Electrical engineering |
| ENECO | ENergie En COmmunicatie | In Dutch | → Energy economics |
| ENEL | Ente Nazionale per l'Energia eLettrica | In Italian | → Electrical engineering |
| EnEng | Environmental Engineering | In English | → Serial publications, periodicals → Environment, environmental sciences |
| ENERBAT | ÉNERgie dans les BÂtiments et les Territoires | In French | → Energy economics → Electrical engineering → Building |
| ENERTHY | Énergies Nouvelles et Renouvelables, Thermique, HYdraulique | In French | → Energy economics → Electrical engineering |
| EnFM | Engineering Fracture Mechanics | In English | → Serial publications, periodicals → 531 |
| EngAn | Engineering Analysis | In English | → Serial publications, periodicals |
| EngCo | Engineering Computations | In English | → Serial publications, periodicals → Computer science |
| ENIAC | European Nanoelectronics Initiative Advisory Council (www.eniac.eu) | In English | → Organizations and associations → 62128 |
| ENIB | École Nationale d'Ingénieurs de Brest | In French | → Specialized or (poly)technical colleges |
| ENIB | École Nationale d'Ingénieurs de Bamako | In French | → Specialized or (poly)technical colleges |
| ENIG | École Nationale d'Ingénieurs de Gabès | In French | → Specialized or (poly)technical colleges |
| ENIM | École Nationale d'Ingénieurs de Metz | In French | → Specialized or (poly)technical colleges |
| ENIM | École Nationale de l'Industrie Minérale | In French | → Higher education, universities → Mineralogy → Mining |
| ENIMR | École Nationale d'Ingénieurs de Monastir | In French | → Specialized or (poly)technical colleges |
| ENIS | École Nationale d'Ingénieurs de Sfax | In French | → Specialized or (poly)technical colleges |
| ENISE | École Nationale d'Ingénieurs de Saint-Étienne | In French | → Specialized or (poly)technical colleges |
| ENIT | École Nationale d'Ingénieurs de Tarbes | In French | → Specialized or (poly)technical colleges |
| ENOB | Effective Number of Bits | In English | → Computer science → Electronics |
| EnOp | Engineering Optimization | In English | → Serial publications, periodicals |
| ENP | École Nationale Polytechnique | In French | → Specialized or (poly)technical colleges |
| ENPC | École Nationale des Ponts et Chaussées | In French | → Specialized or (poly)technical colleges → Civil engineering → Building |
| ENR | Énergie renouvelable | In French | → Energy economics |
| ENRE | Ente Nacional Regulador de la Electricidad (www.enre.gov.ar) | In Spanish | → Central administration → Electrical engineering |
| EnS | Energy Sources | In English | → Serial publications, periodicals → Energy economics |
| ENSAE | École Nationale Supérieure de l'Aéronautique et de l'Espace | In French | → Specialized or (poly)technical colleges → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| ENSAM | École Nationale Supérieure des Arts et Métiers | In French | → Specialized or (poly)technical colleges |
| ENSEA | École Nationale Supérieure de l'Électronique et de ses Applications | In French | → Specialized or (poly)technical colleges → Electronics |
| ENSEEIHT | École Nationale Supérieure d'Électrotechnique , d'Électronique, d'Informatique et d'Hydraulique | In French | → Specialized or (poly)technical colleges → Electrical engineering → Electronics → 00 |
| ENSEIRB | École Nationale Supérieure d'Électronique, d'Informatique et de Radiocommunications de Bordeaux | In French | → Specialized or (poly)technical colleges → Electronics → Computer science → Telecommunications |
| ENSEM | École Nationale Supérieure d'Électricité et de Mécanique | In French | → Specialized or (poly)technical colleges → Mechanical engineering → Electrical engineering |
| ENSERG | École Nationale Supérieure d'Électronique et de Radioélectricité de Grenoble | In French | → Specialized or (poly)technical colleges → Electrical engineering → Electronics |
| ENSH | École Nationale Supérieure de l'Hydraulique | In French | → Specialized or (poly)technical colleges → 626 → 627 |
| ENSI | École Nationale Supérieure d'Ingénieurs | In French | → Specialized or (poly)technical colleges |
| ENSIACET | École Nationale Supérieure des Ingénieurs en Arts Chimiques et Technologiques | In French | → Specialized or (poly)technical colleges → Chemical technology |
| ENSIAME | École Nationale Supérieure des Ingénieurs en Informatique, Automatique, Mécanique, Énergétique, Électronique | In French | → Specialized or (poly)technical colleges → Computer science → Mechanical engineering → Electronics |
| ENSICA | École Nationale Supérieure de Constructions Aéronautiques | In French | → Specialized or (poly)technical colleges → Aeronautics, aircraft |
| ENSICA | École Nationale Supérieure d'Ingénieurs de Constructions Aéronautiques | In French | → Specialized or (poly)technical colleges → Aeronautics, aircraft |