

| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| AAR | Arrêt Automatique du Réacteur | In French | → Nuclear technology | 
| ABWR | Advanced Boiling Water Reactor | In English | → Nuclear technology | 
| ACDN | Action des Citoyens pour le Désarmement Nucléaire | In French | → Organizations and associations → Nuclear technology | 
| ACEREN | Appareil de Concentration des Effluents Radioactifs par Évaporation Naturelle | In French | → Nuclear technology | 
| AEC | Atomic Energy Commission | In English | → Energy economics → Nuclear technology | 
| AEEN | Agencia Europea para la Energía Nuclear = ENEA | European Nuclear Energy Agency | In English | In Spanish | → Organizations and associations → Nuclear technology | 
| AEN | Agence pour l'Énergie Nucléaire (www.nea.fr) = AEN | Agencia para la Energía Nuclear | In Spanish | In French | → International organizations → Nuclear technology | 
| AEN | Agencia para la Energía Nuclear (www.nea.fr) = (look above) | In Spanish | → International organizations → Nuclear technology | 
| AER | Atomic Energy Research | In English | → Energy economics → Nuclear technology | 
| AFA | Advanced Fuel Assembly | In English | → Nuclear technology | 
| AFCEC | Association Française pour les règles de réalisation et de contrôle des matériels conventionnels de grandes Centrales thermiques et nucléaires de production d'ÉleCtricité | In French | → Associations → Energy economics → Nuclear technology → France | 
| AFCEN | Association Française pour les règles de conception et de construction des matériels des Chaudières ÉlectroNucléaires (http://afcen.cydergies.fr) | In French | → Associations → Nuclear technology → Electrical engineering → France | 
| AGR | Advanced Gas Cooled Reactor | In English | → Nuclear technology | 
| AIEA | Agence Internationale de l'Énergie Atomique (www.iaea.org) = IAAE | Internacia Agentejo pri Atom-Energio | In Esperanto = IAEA | International Atomic Energy Agency | In English = AIEA | Agenţia Internaţională pentru Energie Atomică | In Romanian = МААЕ | Международна агенция за атомна енергия | In Bulgarian = AIEA | Agència Internacional de l'Energia Atòmica | In Catalan = MAAE | Mezinárodní agentura pro atomovou energii | In Czech = IAEA | Det Internationale Atomenergiagentur | In Danish = IAEO | Internationale Atomenergieorganisation | In German = OIEA | Organismo Internacional de Energía Atómica | In Spanish = סבא"א | הסוכנות הבינלאומית לאנרגיה אטומית | In Hebrew = IAEA | International Atomenergie Agence | In Letzeburgesh = AIEA | Agenzia Internazionale per l'Energia Atomica | In Italian = IAEA | अंतर्राष्ट्रीय परमाणु ऊर्जा अधिकरण | In Hindi = MAAE | Меѓународна агенција за атомска енергија | In Macedonian = МАГАТЭ | Международное агентство по атомной энергии | In Russian = AIEA | Agência Internacional de Energia Atómica | In Portuguese = MAEA | Międzynarodowa Agencja Energii Atomowej | In Polish = МАГАТЕ | Міжнародне агентство з атомної енергії | In Ukrainian = UAEA | Uluslararası Atom Enerji Ajansı | In Turkish = IAEA | สำนักงานพลังงานปรมาณูระหว่างประเทศ | In Thai = EANA | Energia Atomikoaren Nazioarteko Agentzia | In Basque | In French | → International relations → Energy economics → Nuclear technology | 
| AIEA | Agenţia Internaţională pentru Energie Atomică (www.iaea.org) = IAAE, IAEA, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA, EANA (look above) | In Romanian | → International relations → Energy economics → Nuclear technology | 
| AIEA | Agència Internacional de l'Energia Atòmica (www.iaea.org) = IAAE, IAEA, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA, EANA (look above) | In Catalan | → International relations → Energy economics → Nuclear technology | 
| AIEA | Agenzia Internazionale per l'Energia Atomica (www.iaea.org) = IAAE, IAEA, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA, EANA (look above) | In Italian | → International relations → Energy economics → Nuclear technology | 
| AIEA | Agência Internacional de Energia Atómica (www.iaea.org) = IAAE, IAEA, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA, EANA (look above) | In Portuguese | → International relations → Energy economics → Nuclear technology | 
| AKW | Atomkraftwerk | In German | → Nuclear technology | 
| ALWR | Advanced Light Water Reactor | In English | → Nuclear technology | 
| ANC | American Nuclear Corporation | In English | → Nuclear technology → United States | 
| ANDRA | Agence Nationale pour la gestion des Déchets Radioactifs (www.andra.fr) | In French | → Central administration → Nuclear technology → France | 
| ANS | Advanced Neutron Source | In English | → Nuclear technology | 
| APEC | Ateliers Pour l'Évacuation du Combustible | In French | → Nuclear technology | 
| API | Arrêt Pour Intervention | In French | → Maintenance and logistics → Nuclear technology | 
| APR | Advanced Passive Reactor | In English | → Nuclear technology | 
| APRP | Accident de Perte de Réfrigérant Primaire | In French | → Nuclear technology | 
| APRP | Accident de Perte de Refroidissement Primaire | In French | → Nuclear technology | 
| APSS | Analyse Phénoménologique des Situations de Stockage | In French | → Earth sciences → Nuclear technology | 
| APWR | Advanced Pressurized Water Reactor | In English | → Nuclear technology | 
| AQUAP | Association pour la Qualité des Appareils à Pression | In French | → Associations → Quality management → Mechanical engineering → Nuclear technology | 
| AREN | Asociaţia Română pentru Energie Nucleară | In Romanian | → Associations → Nuclear technology | 
| ARN | Autoridad Regulatoria Nuclear (www.arn.gov.ar) | In Spanish | → Central administration → Nuclear technology → Argentina | 
| ASG | Alimentation de Secours des Générateurs de vapeur | In French | → Energy economics → Nuclear technology | 
| ASN | Autorité de Sûreté Nucléaire | In French | → Central administration → Nuclear technology | 
| AtEn | Atomnaia Energiia = AtEn | Атомная энергия | In Russian | In Russian | → Serial publications, periodicals → Nuclear, atomic, and molecular physics → Nuclear technology | 
| BAN | Bâtiment des Auxiliaires Nucléaires | In French | → Nuclear technology | 
| BANEDA | BÂtiment National Destiné à l'Entreposage des Déchets Activés | In French | → Environmental technology, water supply, waste management → Nuclear technology | 
| BCCN | Bureau de Contrôle des Chaudières Nucléaires | In French | → Nuclear technology | 
| BHWR | Boiling Heavy Water Reactor | In English | → Nuclear technology | 
| BK | Bâtiment Combustible | In French | → Nuclear technology | 
| BMRC | Buffalo Materials Research Center | In English | → Research institutes → Nuclear technology | 
| BNG | British Nuclear Group | In English | → Organizations and associations → Energy economics → Nuclear technology → United Kingdom | 
| BR | Bâtiment Réacteur | In French | → Nuclear technology | 
| BWR | Boiling Water Reactor = SWR | Siedewasserreaktor | In German = REB | Réacteur à Eau Bouillante | In French | In English | → Nuclear technology | 
| CAMARI | Certificat d'Aptitude à Manipuler les Appareils de Radiographie Industrielle | In French | → Nuclear technology | 
| CANDU | CANada Deuterium Uranium | In English | → Nuclear technology → Canada | 
| CCAP | Commission Centrale des Appareils à Pression | In French | → Organizations and associations → Mechanical engineering → Nuclear technology | 
| CEA | Commissariat à l'Énergie Atomique (www.cea.fr) | In French | → Research institutes → 5931 → Energy economics → Nuclear technology → France | 
| CEN | Centre d'Études Nucléaires | In French | → Research institutes → Nuclear, atomic, and molecular physics → Nuclear technology | 
| CENG | Centre d'Études Nucléaires de Grenoble | In French | → Research institutes → Nuclear, atomic, and molecular physics → Nuclear technology | 
| CERN | Centre Européen de Recherche Nucléaire (www.cern.ch) | In French | → Nuclear, atomic, and molecular physics → Nuclear technology | 
| CIINB | Commission Interministérielle des Installations Nucléaires de Base | In French | → Central administration → Nuclear technology | 
| CIPN | Centre d'Ingénierie du Parc Nucléaire en exploitation | In French | → Nuclear technology | 
| CIPN | Centre d'Ingénierie du Parc Nucléaire en exploitation | In French | → Nuclear technology | 
| CIPR | Commission Internationale de Protection Radiologique | In French | → Nuclear technology | 
| CIUMR | Comisión Internacional de Unidades y Medidas Radiológicas = ICRU | International Commission on Radiation Units and Measurements | In English = CIUMR | Commission Internationale des Unités et des Mesures de Radiation | In French = CIUMR | Comissão Internacional de Unidades e Medidas Radiação | In Portuguese | In Spanish | → Standardization → Nuclear technology | 
| CIUMR | Commission Internationale des Unités et des Mesures de Radiation = ICRU (look above) | In French | → Standardization → Nuclear technology | 
| CIUMR | Comissão Internacional de Unidades e Medidas Radiação = ICRU (look above) | In Portuguese | → Standardization → Nuclear technology | 
| CLAP | Comité de Liaison des Appareils à Pression | In French | → Mechanical engineering → Nuclear technology | 
| CLEAN | Conformité à la Législation Environnementale des Activités Nucléaires | In French | → Software → 5023 → Nuclear technology | 
| CMIR | Cellule Mobile d'Intervention Radiologique | In French | → Firefighting → Nuclear technology | 
| CNEA | Comisión Nacional de Energía Atómica (www.cnea.gov.ar) | In Spanish | → Central administration → Nuclear technology → Argentina | 
| CNEN | Centre National d'Équipement Nucléaire | In French | → Nuclear technology | 
| CNIC | Citizens' Nuclear Information Center | In English | → Documentation → Nuclear technology | 
| CNPE | Centre Nucléaire de Production d'Électricité | In French | → Nuclear technology → Electrical engineering | 
| CNS | Canadian Nuclear Society (www.cns-snc.ca) | In English | → Organizations and associations → Nuclear, atomic, and molecular physics → Nuclear technology → Canada | 
| CNWDI | Critical Nuclear Weapons Design Information | In English | → Nuclear technology → Military engineering | 
| COGEMA | Compagnie Générale des Matières Nucléaires | In French | → Mining → Nuclear technology | 
| CoRWM | Committee on Radioactive Waste Management (www.corwm.org.uk) | In English | → Organizations and associations → Nuclear technology → Environmental technology, water supply, waste management | 
| CP0 | Contrat-Programme n°0 | In French | → Energy economics → Nuclear technology | 
| CP1 | Contrat-Programme n°1 | In French | → Energy economics → Nuclear technology | 
| CP2 | Contrat-Programme n°2 | In French | → Energy economics → Nuclear technology | 
| CSA | Centre de Stockage de l'Aube | In French | → Nuclear technology | 
| CSI | Criticality Safety Index | In English | → Nuclear technology | 
| CSNE | Comité Sûreté Nucléaire en Exploitation | In French | → Organizations and associations → Nuclear technology | 
| CSP | Circuit Secondaire Principal | In French | → Engineering, technology → Nuclear technology | 
| CSSIN | Conseil Supérieur de la Sûreté et de l'Information Nucléaire | In French | → Organizations and associations → Nuclear technology | 
| CTBTO | Comprehensive Nuclear-Test-Ban Treaty Organization | In English | → Organizations and associations → International relations → Nuclear technology | 
| DANASAT | Direct-Ascent Nuclear ASAT | In English | → Nuclear technology | 
| DATR | Directement Affecté aux Travaux sous Rayonnements | In French | → Nuclear technology | 
| DBPV | Design Basis Probability Value | In English | → Nuclear technology | 
| DCN | Division Combustibles Nucléaires | In French | → Nuclear technology | 
| DDREF | Dose and Dose Rate Effectiveness Factor | In English | → Nuclear technology | 
| DGSRN | Direction Générale de la Sûreté et de la Radioprotection Nucléaire | In French | → Nuclear technology | 
| DIN | Division Ingénierie Nucléaire | In French | → Nuclear technology | 
| DIRCEN | Direction des Centres d'Expérimentations Nucléaires | In French | → Nuclear technology | 
| DMA | Dose Maximale Admissible | In French | → Nuclear technology | 
| DNA | Defense Nuclear Agency | In English | → Military affairs → Military engineering → Nuclear technology | 
| DNS | Departure Nuclear Stage | In English | → Nuclear technology | 
| DPN | Division Production Nucléaire | In French | → Nuclear technology | 
| DREF | Dose Rate Effectiveness Factor | In English | → Nuclear technology | 
| DSIN | Direction de la Sûreté des Installations Nucléaires | In French | → Nuclear technology | 
| DSRNC | Detection Systems for Radiological and Nuclear Countermeasure | In English | → Nuclear technology | 
| DWR | Druckwasserreaktor = PWR | Pressurized Water Reactor | In English = REP | Réacteur à Eau Pressurisée | In French | In German | → Nuclear technology | 
| EAC | Essais À Chaud | In French | → Nuclear technology | 
| EANA | Energia Atomikoaren Nazioarteko Agentzia (www.iaea.org) = AIEA, IAAE, IAEA, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA (look above) | In Basque | → International relations → Energy economics → Nuclear technology | 
| ECURIE | European Community Urgent Radiological Information Exchange | In English | → Nuclear technology → European Union → Europe | 
| EFDA | European Fusion Development Association (www.efda.org) | In English | → Associations → 53912 → Nuclear technology | 
| EFP | Etat de Fin de Palier | In French | → Nuclear technology | 
| EnAt | Energia és Atomtechnika | In Hungarian | → Serial publications, periodicals → Energy economics → Nuclear technology | 
| ENEA | European Nuclear Energy Agency = AEEN (look above) | In English | → Organizations and associations → Nuclear technology | 
| EPICEA | Entreprise de Promotion de l'Innovation au Commissariat à l'Énergie Atomique | In French | → Nuclear technology | 
| EPP | European Passive Plant | In English | → Nuclear technology | 
| EPR | European Pressurized Reactor | In English | → Nuclear technology | 
| ERTG | Economic Radioisotope Thermoelectric Generator | In English | → Energy economics → Nuclear technology → Electrical engineering | 
| ESBWR | Economic Simplified Boiling Water Reactor | In English | → Nuclear technology | 
| ESPACE | Essai, Suivi et Protection Améliorés des Cœurs en Exploitation | In French | → Nuclear technology | 
| ETF | Enrichment Technology France | In English | → Nuclear technology | 
| FA | Faible Activité | In French | → Nuclear technology | 
| FANP | Fundamental and Applied Nuclear Physics Series | In English | → Serial publications, periodicals → Nuclear, atomic, and molecular physics → Nuclear technology | 
| FAR | Fuite Avant Rupture = LBB | Leak Before Break | In English | In French | → Nuclear technology | 
| FAS | Faible Activité Spécifique | In French | → Nuclear technology | 
| FBR | Fast Breeder Reactor | In English | → Nuclear technology | 
| FMA | (Déchets de) Faible et Moyenne Activité | In French | → Nuclear technology → Environmental technology, water supply, waste management | 
| GAEC | Guide d'Action de l'Équipe de Crise (nucléaire) | In French | → Nuclear technology | 
| GALICE | Gestion d'une Augmentation Limitée de l'Irradiation du Combustible en Exploitation | In French | → Nuclear technology | 
| GARANCE | Gestion Avancée des REP 900 avec Adaptation aux Nouvelles Conditions d'Exploitation | In French | → Nuclear technology | 
| GAU | Größter Anzunehmender Unfall | In German | → Nuclear technology | 
| GCHWR | Gas Cooled Heavy Water Reactor | In English | → Nuclear technology | 
| GCN | Groupe Combustible Nucléaire | In French | → Nuclear technology | 
| GCR | Gas Cooled Reactor | In English | → Nuclear technology | 
| GPNDS | Global Positioning and Nuclear Detection System | In English | → Geodesy, cartography → Nuclear technology | 
| GPR | Groupe Permanent chargé des Réacteurs nucléaires | In French | → Organizations and associations → Nuclear technology | 
| GQA | Groupe des Questions Atomiques | In French | → Organizations and associations → Nuclear, atomic, and molecular physics → Nuclear technology | 
| HANE | High-Altitude Nuclear Explosion | In English | → Nuclear technology → Military engineering | 
| HAVL | (Déchets de) Haute Activité à Vie Longue | In French | → Nuclear technology | 
| HCT | Hot Cell Technology | In English | → Nuclear, atomic, and molecular physics → 54458 → Nuclear technology | 
| HEU | High Enriched Uranium | In English | → Nuclear technology | 
| HGW | Heat Generating Waste | In English | → Nuclear technology | 
| HTGR | High Temperature Gas Cooled Reactor | In English | → Nuclear technology | 
| HTR | High Temperature Reactor | In English | → Nuclear technology | 
| IAAE | Internacia Agentejo pri Atom-Energio (www.iaea.org) = AIEA, IAEA, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA, EANA (look above) | In Esperanto | → International relations → Energy economics → Nuclear technology | 
| IadEn | Iadernaia Energiia = IadEN | ядерная энергия | In Russian | In Russian | → Serial publications, periodicals → Nuclear, atomic, and molecular physics → Nuclear technology | 
| IadEN | ядерная энергия = IadEn (look above) | In Russian | → Serial publications, periodicals → Nuclear, atomic, and molecular physics → Nuclear technology | 
| IAEA | International Atomic Energy Agency (www.iaea.org) = AIEA, IAAE, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA, EANA (look above) | In English | → International relations → Energy economics → Nuclear technology | 
| IAEA | Det Internationale Atomenergiagentur (www.iaea.org) = AIEA, IAAE, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA, EANA (look above) | In Danish | → International relations → Energy economics → Nuclear technology | 
| IAEA | International Atomenergie Agence (www.iaea.org) = AIEA, IAAE, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA, EANA (look above) | In Letzeburgesh | → International relations → Energy economics → Nuclear technology | 
| IAEA | अंतर्राष्ट्रीय परमाणु ऊर्जा अधिकरण (www.iaea.org) = AIEA, IAAE, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA, EANA (look above) | In Hindi | → International relations → Energy economics → Nuclear technology | 
| IAEA | สำนักงานพลังงานปรมาณูระหว่างประเทศ (www.iaea.org) = AIEA, IAAE, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA, EANA (look above) | In Thai | → International relations → Energy economics → Nuclear technology | 
| IAEO | Internationale Atomenergieorganisation (www.iaea.org) = AIEA, IAAE, IAEA, МААЕ, MAAE, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA, EANA (look above) | In German | → International relations → Energy economics → Nuclear technology | 
| IALANA | International Association of Lawyers Against Nuclear Arms | In English | → Associations → Law, jurisprudence → Nuclear technology → Applied sciences, technology | 
| ICRP | International Commission on Radiological Protection | In English | → Nuclear technology | 
| ICRU | International Commission on Radiation Units and Measurements = CIUMR (look above) | In English | → Standardization → Nuclear technology | 
| IFIN-HH | Institutul Naţional de Cercetare-Dezvoltare pentru Fizică şi Inginerie Nucleară 'Horia Hulubei' | In Romanian | → Nuclear, atomic, and molecular physics → Nuclear technology | 
| IGSN | Inspection Générale pour la Sûreté Nucléaire | In French | → Central administration → Nuclear technology | 
| IJFE | International Journal of Fusion Energy | In English | → Serial publications, periodicals → Energy economics → Nuclear technology | 
| ILLW | Intermediate and Low Level Waste | In English | → Nuclear technology → Environmental technology, water supply, waste management | 
| INB | Installation Nucléaire de Base | In French | → Nuclear technology | 
| INES | International Nuclear Event Scale | In English | → Nuclear technology | 
| INIS | International Nuclear Information System | In English | → Nuclear technology | 
| INSTM | Institut National des Sciences et des Techniques Nucléaires | In French | → Research institutes → Nuclear, atomic, and molecular physics → Nuclear technology | 
| IONDS | Integrated Operational Nuclear Detection System | In English | → Nuclear technology | 
| IPSN | Institut de Protection et de Sûreté Nucléaire | In French | → Nuclear technology | 
| IRSN | Institut de Radioprotection et de Sécurité Nucléaire | In French | → Research institutes → Nuclear technology | 
| ITER | International Thermonuclear Experimental Reactor (www.iter.org) | In English | → Nuclear technology | 
| ITNS | IEEE (Institute of Electrical and Electronics Engineers) Transactions on Nuclear Science | In English | → Serial publications, periodicals → Nuclear, atomic, and molecular physics → Nuclear technology | 
| ITU | Institut für Transurane | In German | → Research institutes → Nuclear, atomic, and molecular physics → Nuclear technology | 
| ITU | Institute for Transuranium Elements | In English | → Nuclear, atomic, and molecular physics → 54458 → Nuclear technology | 
| JAEA | Japan Atomic Energy Agency (https://www.jaea.go.jp/) | In English | → Central administration → Nuclear, atomic, and molecular physics → Energy economics → Nuclear technology → Japan | 
| JAEIC | Joint Atomic Energy Intelligence Committee | In English | → Energy economics → Nuclear technology | 
| JET | Joint European Torus (www.jet.efda.org) | In English | → 53912 → Nuclear technology | 
| JNuE | Journal of Nuclear Energy | In English | → Serial publications, periodicals → Nuclei → Nuclear technology | 
| JRP | Journal of Radiological Protection | In English | → Serial publications, periodicals → 54458 → Nuclear technology | 
| LBB | Leak Before Break = FAR (look above) | In English | → Nuclear technology | 
| LEU | Low Enriched Uranium | In English | → Nuclear technology | 
| LOCA | Loss of Coolant Accident | In English | → Nuclear technology | 
| LWBR | Light Water Breeder Reactor | In English | → Nuclear technology | 
| LWCHWR | Light Water Cooled Heavy Water Reactor | In English | → Nuclear technology | 
| LWGR | Light Water Cooled Graphite Reactor | In English | → Nuclear technology | 
| MAAE | Mezinárodní agentura pro atomovou energii (www.iaea.org) = AIEA, IAAE, IAEA, МААЕ, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA, EANA (look above) | In Czech | → International relations → Energy economics → Nuclear technology | 
| MAAE | Меѓународна агенција за атомска енергија (www.iaea.org) = AIEA, IAAE, IAEA, МААЕ, IAEO, OIEA, סבא"א, МАГАТЭ, MAEA, МАГАТЕ, UAEA, EANA (look above) | In Macedonian | → International relations → Energy economics → Nuclear technology | 
| MAEA | Międzynarodowa Agencja Energii Atomowej (www.iaea.org) = AIEA, IAAE, IAEA, МААЕ, MAAE, IAEO, OIEA, סבא"א, МАГАТЭ, МАГАТЕ, UAEA, EANA (look above) | In Polish | → International relations → Energy economics → Nuclear technology | 
| MAGNUC | MAGazine d'information sur le NUCléaire | In French | → Serial publications, periodicals → Nuclear technology | 
| MARN | Mission d'Appui à la gestion du Risque Nucléaire | In French | → Nuclear technology → Accidents, risks, safety | 
| MDA | Minimum Detectable Activity | In English | → Nuclear technology | 
| MNA | Mission Nationale des Arrêts | In French | → Nuclear technology | 
| MOX | Mixed OXyde fuel | In English | → Nuclear technology | 
| MSA | Minimum Significant Activity | In English | → Nuclear technology | 
| NACRE | Nouvelle Architecture de Calculs de REcharge | In French | → Nuclear technology | 
| NAM | Nuclear Assessment Methodology | In English | → Nuclear technology | 
| NCG | Nuclear Criteria Group | In English | → Nuclear technology | 
| NDA | National Decommissioning Authority | In English | → Public administration, government → Nuclear technology | 
| NDS | Nuclear Detection System | In English | → Nuclear technology | 
| NDS | Nuclear Data Sheets | In English | → Serial publications, periodicals → Nuclei → Nuclear technology | 
| NEA | Nuclear Energy Agency | In English | → Organizations and associations → Nuclear technology | 
| NELS | Nuclear Effects Link Simulator | In English | → Nuclear technology | 
| NERSA | (Société centrale) Nucléaire Européenne à neutrons Rapides SA | In French | → Nuclear technology → Electrical engineering | 
| NERVA | Nuclear Engine for Rocket Vehicle Application | In English | → Nuclear technology → Astronautics | 
| NEST | Nuclear Emergency Search Team | In English | → Nuclear technology | 
| NH&S | Nuclear Hardening and Survivability | In English | → Nuclear technology | 
| NIFS | National Institute for Fusion Science | In English | → Research institutes → Nuclear, atomic, and molecular physics → Nuclear technology | 
| NIM | Nuclear Instrumentation Module | In English | → Nuclear technology | 
| NIMP | Nuclear Instruments and Methods in Physics Research | In English | → Serial publications, periodicals → Nuclei → Nuclear technology | 
| NMR | Nuclear Magnetic Resonance = RMN | Résonance Magnétique Nucléaire | In French = RMN | Ressonància Magnètica Nuclear | In Catalan = RMN | Risonanza Magnetica Nucleare | In Italian = תמ"ג | תהודה מגנטית גרעינית | In Hebrew = ЯМР | Я́дерного магни́тного резона́нса | In Russian = НМР | Нуклеарна магнетна резонанција | In Serbian | In English | → Medicine → Nuclear, atomic, and molecular physics → Nuclear technology | 
| NNPT | Nuclear Non-Proliferation Treaty | In English | → International relations → Nuclear technology → Military engineering | 
| NNSA | National Nuclear Security Administration | In English | → Central administration → Nuclear technology | 
| NOMIS | Nuclear Operations and Maintenance Information Service | In English | → Nuclear technology | 
| NORM | Naturally Occurring Radioactive Material | In English | → Nuclear technology | 
| NPS | Nuclear Power Station | In English | → Nuclear technology |