

| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| LIFE | L'Instrument Financier pour l'Environnement | In French | → International relations → European Union → Environmental protection → Environmental science | 
| LIFIA | Laboratoire d'Informatique Fondamentale et d'Intelligence Artificielle | In French | → Research institutes → Computer science → Artificial intelligence | 
| LIG | Laboratoire d'Informatique de Grenoble | In French | → Research institutes → Computer science | 
| LIH | Laboratoire d'Informatique du Havre | In French | → Research institutes → Computer science | 
| LIH | Ligue Internationale de Hockey | In French | → Organizations and associations → Sport, physical exercises | 
| LILA | Ligue Internationale de la Librairie Ancienne | In French | |
| LiLoLiPo | Linux et les Logiciels Libres à Pont-Château | In French | → Organizations and associations → Software → Operating systems | 
| LIM | Laboratoire d'Ingénierie Mathématique | In French | → Research institutes → Mathematics | 
| LIMHP | Laboratoire d'Ingénierie des Matériaux et des Hautes Pressions | In French | → Research institutes → Engineering, technology | 
| LIMSI | Laboratoire d'Informatique pour la Mécanique et les Sciences de l'Ingénieur (www.limsi.fr) | In French | → Research institutes → Computer science → Mechanical engineering | 
| LINA | Laboratoire d'Informatique de Nantes Atlantique (www.lina.univ-nantes.fr) | In French | → Research institutes → Computer science → France | 
| LinAC | Linux Angoulême Charente | In French | → Operating systems | 
| LIP | Laboratoire d'Imagerie Paramétrique (www.labos.upmc.fr/lip/) | In French | → Research institutes → Image processing | 
| LIP6 | Laboratoire d'Informatique de Paris 6 (www.lip6.fr) | In French | → Research institutes → Computer science → France | 
| LIRIS | Laboratoire d'InfoRmatique en Images et Systèmes d'information | In French | → Research institutes → Computer science → Graphical processing → Fundamentals of knowledge and culture | 
| LIRMM | Laboratoire d'Informatique, de Robotique et de Microélectronique de Montpellier (www.lirmm.fr) | In French | → Research institutes → Computer science → Electronics → France | 
| LISA | Lycée de l'Image et du Son d'Angoulême | In French | → Education → Drawing and applied arts → Music | 
| LISA | Logement Imposé Sans Astreinte | In French | → Accommodation | 
| LISA | Laboratoire Interuniversitaire des Systèmes Atmosphériques (www.lisa.univ-paris12.fr) | In French | → Research institutes → Meteorology, climatology → Threats to the environment | 
| LISA | Laboratoire d'Ingénierie des Systèmes Automatisés | In French | → Research institutes → Mechanical engineering → Electronics | 
| LISA | Lieux, Identités, eSpaces et Activités | In French | → Research institutes → Environmental protection | 
| LISA | Ligue dans l'Intérêt de la Société et de l'Animal | In French | → Organizations and associations → Environmental protection | 
| LISA | Laboratoire d'Informatique des Systèmes Adaptatifs | In French | → Research institutes → Computer science | 
| LISE | Laboratoire Interdisciplinaire pour la Sociologie Économique | In French | → Research institutes → Sociology → Economics | 
| LISMMA | Laboratoire d'Ingénierie des Systèmes Mécaniques et MAtériaux | In French | → Research institutes → Mechanical engineering | 
| LISSE | Logiciel Informatique de Structure Standard d'Échange | In French | → Software | 
| LIST | Laboratoire d'Intégration des Systèmes et des Technologies | In French | → Research institutes → Engineering, technology | 
| LITCHI | Les Instruments et Techniques du CHangement Interne | In French | → Management | 
| LITIS | Laboratoire d'Informatique, de Traitement de l'Information et des Systèmes | In French | → Research institutes → Computer science | 
| LIVRE | Limitation de l'Impact de Vidange des REtenues | In French | → Energy economics | 
| LJLL | Laboratoire Jacques-Louis Lions | In French | → Research institutes → Numerical analysis | 
| LLI | Laboratoire de Linguistique Informatique | In French | → Research institutes → Computer science → Linguistics | 
| LMB | Lycée des Métiers du Bâtiment de Felletin | In French | → Specialized or polytechnical colleges → Construction | 
| LMC | Leucémie Myéloïde Chronique | In French | → Blood and circulatory system → Pathology | 
| LMD | Laboratoire de Météorologie Dynamique | In French | → Research institutes → Meteorology, climatology | 
| LMD | Langage de Manipulation de Données | In French | → Programming languages → Data | 
| LMFA | Laboratoire de Mécanique des Fluides et d'Acoustique (www.lmfa.ec-lyon.fr) | In French | → Research institutes → Fluid mechanics → Aerodynamics → Physics → France | 
| LMGP | Laboratoire des Matériaux et du Génie Physique | In French | → Research institutes → Materials science → Physics | 
| LMO | Lilloise Machines Outils | In French | → Organizations and associations → Trade → Mechanical engineering → France | 
| LMO | Langages et Modèles à Objets | In French | → Programming languages | 
| LMO | Laboratoire de Mathématiques d'Orsay | In French | → Research institutes → Mathematics | 
| LMP | Laboratoire de Microélectronique de Puissance | In French | → Research institutes → Electronics → Energy economics | 
| LMPV | Leucomalacie périventriculaire = PVL | Periventrikuläre Leukomalazie | In German = PVL | Periventricular Leukomalacia | In English = PVL | Periventriculaire Leukomalacie | In Dutch | In French | → Obstetrics → Neurology | 
| LMT | Laboratoire de Mécanique et Technologie | In French | → Research institutes → Mechanical engineering → Engineering, technology | 
| LMT | Laval Mayenne Technopole | In French | → Research policy → France | 
| LNCC | Ligue Nationale Contre le Cancer | In French | → Organizations and associations → Oncology | 
| LNE | Laboratoire National d'Essais | In French | → Research institutes | 
| LNR | Ligue Nationale de Rugby | In French | → Organizations and associations → Football and rugby | 
| LO | Lutte Ouvrière | In French | → Political parties and movements | 
| LOADT | Loi d'Orientation pour l'Aménagement et le Développement durable du Territoire | In French | → Law, jurisprudence → Regional planning | 
| LOLF | Loi Organique relative aux Lois de Finances | In French | → Economics → Public administration, government | 
| LOLICA | LOgiciels LIbres en région Champagne-Ardenne | In French | → Programming languages | 
| LOLICA | Logiciels Libres en Champagne-Ardenne | In French | → Organizations and associations → Software | 
| LoLiTa | Logiciels Libres à Tahiti et ses îles | In French | → Organizations and associations → Software | 
| LOOF | Livre Officiel des Origines Félines | In French | → Mammals | 
| LOOM | Loi d'Orientation pour l'Outre-Mer | In French | → Politics | 
| LOP | Loi d'Orientation et de Programmation pour la recherche et le développement technologique | In French | → Politics → Research policy → Engineering, technology | 
| LOPPSI | Loi d'Orientation et de Programmation pour la Performance de la Sécurité Intérieure | In French | → Law, jurisprudence → Police | 
| LOTI | Loi d'Orientation des Transports Intérieurs | In French | → Politics → Transport and postal services | 
| LOVe | Logiciels d'Observation des Vulnérables | In French | → Software → Road transport → France | 
| LPCI | Laboratoire de Physico-Chimie Industrielle | In French | → Research institutes → Chemical technology | 
| LPDA | Lettre de Politique de Développement Agricole | In French | → Agricultural sciences | 
| LPEQ | Laboratoire de Psychologie Expérimentale et Quantitative (www.unice.fr/lpeq/) | In French | → Research institutes → Psychology | 
| LPES | Laboratoire de Physique Électronique des Solides | In French | → Research institutes → 53912 | 
| LPF | Livre des Procédures Fiscales | In French | → Taxes, duties | 
| LPIC | Ligue de Protection des Internautes Câblés | In French | → Internet → Organizations and associations → Consumerism → Telecommunications | 
| LPL | Laboratoire de Physique des Lasers | In French | → Research institutes → Magnetism | 
| LPM | Laboratoire de Physique de la Matière | In French | → Research institutes → 539 | 
| LPMA | Laboratoire de Probabilités et Modèles Aléatoires | In French | → Research institutes → Mathematics | 
| LPMC | Laboratoire de Physique de la Matière Condensée (http://pmc.polytechnique.fr) | In French | → Research institutes → Physics of condensed matter → France | 
| LPMMH | Laboratoire de Physique et Mécanique des Milieux Hétérogènes (www.pmmh.espci.fr) | In French | → Research institutes → Physics | 
| LPMTM | Laboratoire des Propriétés Mécaniques et Thermodynamiques des Matériaux | In French | → Research institutes → Mechanics → Thermodynamics | 
| LPO | Ligue pour la Protection des Oiseaux (www.lpo.fr) | In French | → Organizations and associations → 5023 → France | 
| LPPA | Laboratoire de la Physiologie, de la Perception et de l'Action | In French | → Research institutes → Physiology | 
| LPPE | Laboratoire de Physiologie et de Psychologie Expérimentales | In French | → Research institutes → Psychology → Physiology | 
| LPRL | Laboratoire de Physique du Rayonnement et de la Lumière | In French | → Research institutes → Electromagnetism | 
| LPS | Laboratoire de Police Scientifique | In French | → Research institutes → Police | 
| LPS | Lipopolysaccharide | In French | → Biochemistry, biophysics | 
| LPV | Logement du Pays de Vizille | In French | → Accommodation | 
| LRAC | Lance-Roquettes Antichar | In French | → Military engineering | 
| LRI | Laboratoire de Recherche en Informatique | In French | → Research institutes → Computer science | 
| LRM | Lance-Roquettes Multiples | In French | → Military engineering | 
| LRPAT | Laboratoire de Recherche en Pathologies Radio-induites | In French | → Research institutes → Pathology | 
| LRQA | Lloyd's Register Quality Assurance | In French | → Quality management | 
| LRU | Loi relative aux libertés et Responsabilités des Universités | In French | → Law, jurisprudence → Higher education, universities | 
| LSA | Latent Semantic Analysis | In French | → Computer-based techniques → Semiotics | 
| LSCE | Laboratoire des Sciences du Climat et de l'Environnement | In French | → Threats to the environment → Meteorology, climatology | 
| LSE | Limite Supérieure d'Explosivité | In French | → Chemical technology | 
| LSGC | Laboratoire des Sciences du Génie Chimique | In French | → Research institutes → Chemistry → Chemical technology | 
| LSPCC | Lot de Sauvetage et de Protection Contre les Chutes | In French | → Firefighting | 
| LSQ | Langue des Signes Québécoise | In French | → Linguistics | 
| LSTA | Laboratoire de Statistique Théorique et Appliquée | In French | → Research institutes → Statistics | 
| LT | Long Terme | In French | |
| LTF | Ligue Trotskiste de France | In French | → Communist parties → France | 
| LTF | Lyon Turin Ferroviaire | In French | → Organizations and associations → Civil engineering and land transport → Rail transport engineering → Rail transport | 
| LTSI | Laboratoire Traitement du Signal et Instrumentation | In French | → Research institutes → Telecommunications | 
| LU | Lefèvre Utile | In French | → Food technology | 
| LUR | Lettre Unique de Relance | In French | |
| LURE | Laboratoire d'Utilisation du Rayonnement Électromagnétique | In French | → Research institutes → Electricity, magnetism, electromagnetism | 
| LUSSI | Logique des Usages, Sciences Sociales et sciences de l'Information | In French | → Sociology → Computer science → Telecommunications | 
| LUSSI | Laboratoire UltraSons, Signaux et Instrumentation (www.lussi.univ-tours.fr) | In French | → Research institutes → Diagnostics → France | 
| LVA | Laboratoire Vibrations-Acoustique | In French | → Research institutes → Acoustics | 
| LVA | libération des Voies Aériennes | In French | → Traumatology | 
| LVE | Lille-Villeneuve-Espéranto | In French | → Organizations and associations → Artificial languages (linguistics) → France | 
| LVE | La Vie Électrique | In French | → Serial publications, periodicals → Electrical engineering | 
| LVF | Légion des Volontaires Français | In French | → Military affairs → History → France | 
| LyoBu | Bulletin de l'Observatoire de Lyon | In French | → Serial publications, periodicals → Astronomy → France | 
| M | Méthionine = M | Methionine | In English = M | Metionina | In Catalan = M | Methionin | In German = M | Metionina | In Spanish = M | Metionino | In Esperanto = M | 메티오닌 | In Korean = M | Metionin | In Indonesian = M | Metionina | In Italian = M | Metionin | In Croatian = M | מתיונין | In Hebrew = M | Metionīns | In Latvian = M | Methionin | In Letzeburgesh = M | Metioninas | In Lithuanian = M | Methionine | In Dutch = M | メチオニン | In Japanese = M | Metionin | In Norwegian = M | Metionina | In Polish = M | Metionina | In Portuguese = M | Метионин | In Russian = M | Метионин | In Serbian = M | Metioniini | In Finnish = M | Metionin | In Swedish = M | Metiyonin | In Turkish = M | Метіонін | In Ukrainian = M | 蛋氨酸 | In Chinese | In French | → Biochemistry, biophysics | 
| M3E | Modélisation pour l'Énergie, l'Économie, l'Énvironnement | In French | → Economics → Threats to the environment → Energy economics | 
| M3E | Méthode d'Entreprise d'Évaluation des Emplois | In French | → Personnel management | 
| M3S | Médiation, Sciences, Savoirs et Sociétés | In French | → Social sciences | 
| MAA | Missile Air-Air | In French | → Military engineering | 
| MAACA | Mouvement Anti-Autoritaire Contre l'Armée | In French | → Organizations and associations → Anarchist organizations | 
| MAAIF | Mutuelle Assurance Automobile des Instituteurs de France | In French | → Insurance → Education → Automobile manufacturing → France | 
| MAAIONG | Mission d'Appui à l'Action internationale des Organisations Non Gouvernementales | In French | → Development | 
| MACSI | Modélisation, Analyse et Conduite des Systèmes Industriels | In French | → Computer-based techniques → Engineering, technology | 
| MACSI | Master d'Audit et Conseil des Systèmes d'Information | In French | → Higher education, universities → Computer science | 
| MADE | Mise À Disposition de l'Énergie | In French | → Energy economics | 
| MADONNA | Mise À Disposition de DONNées Agrégées | In French | → Software → Personnel management | 
| MADR | Ministère de l'Agriculture et du Développement Rural | In French | → Central administration → Agricultural sciences → Regional planning | 
| MAE | Ministère des Affaires Étrangères | In French | → Central administration → International relations | 
| MAE | Mesures Agri-Environnementales | In French | → Environmental protection → Agricultural sciences | 
| MAEH | Mouvement pour l'Amélioration de l'Environnement Hospitalier | In French | → Organizations and associations → Medicine | 
| MAF | Mathématiques Appliquées et Fondamentales | In French | → Mathematics | 
| MAF | Magasin Avancés Fournisseur | In French | → Maintenance and logistics | 
| MAFPEN | Mission Académique à la Formation des Personnels de l'Éducation Nationale | In French | → Education → Central administration | 
| MAGALI | Moyens Aixois de Gestion des Automobiles par Localisation Informatique | In French | → Automobile manufacturing → Transport and postal services | 
| MAGIC | Missile Autoguidé d'Interception et de Combat | In French | → Military engineering | 
| MAGNUC | MAGazine d'information sur le NUCléaire | In French | → Serial publications, periodicals → Nuclear technology | 
| MAI | Mécanique et Automatismes Industriels | In French | → Mechanical engineering | 
| MAIF | Mutuelle d'Assurance des Instituteurs de France (www.maif.fr) | In French | → Insurance → Education → France | 
| MAINC | Ministère des Affaires Indiennes et du Nord Canada | In French | → Central administration → Canada | 
| MAJ | Mise À Jour | In French | |
| MAJEX | Mise À Jour des EXtractions | In French | → Data | 
| MALTEN | Mise À La TErre du Neutre | In French | → Electrical engineering | 
| MAM | Musée d'Art Moderne | In French | → Museums → Arts | 
| MAM | Michèle Alliot-Marie | In French | → Politics | 
| MAN | Médecine d'Afrique Noire | In French | → Serial publications, periodicals → Medicine → Africa | 
| MAP | Maison Asie-Pacifique | In French | |
| MAPA | Marchés à procédures adaptées | In French | → Economics | 
| MAPI | Messaging Application Programming Interface | In French | → Software | 
| MAPLY | Mathématiques Appliquées de Lyon | In French | → Mathematics → France | 
| MAQ | Manuel d'Assurance Qualité | In French | → Quality management | 
| MARAT | Mouvement d'Action Révolutionnaire Toulousain | In French | → Anarchist organizations | 
| MARIAT | MAîtrise des Risques Induits par l'Augmentation de la capacité de Transit | In French | → Electrical engineering | 
| MARION | Méthode d'Analyse de Risques Informatiques Optimisée par Niveau | In French | → Software | 
| MARN | Mission d'Appui à la gestion du Risque Nucléaire | In French | → Nuclear technology → Accidents, risks, safety | 
| MARNDR | Ministère de l'Agriculture, des Ressources Naturelles et du Développement Rural | In French | → Central administration → Agricultural sciences | 
| MARPA | Maison d'Accueil Rurale pour Personnes Âgées | In French | → Accommodation → Gerontology | 
| MARS | Mouvement pour une Alternative Républicaine et Sociale | In French | → Political parties and movements | 
| MARSOUIN | Môle Armoricain de Recherche sur la SOciété de l'Information et les Usages d 'Internet (www.marsouin.org) | In French | → Internet → Telecommunications | 
| MARTINE | Macro d'Aide au Remplissage de Tableaux d'INdicateurs sous Excel | In French | → Software → Data | 
| MASC | Malzéville Association Sport et Culture | In French | → Associations → Sport, physical exercises → Civilization, culture, progress | 
| MASCOTTE | Méthodes Algorithmiques, Simulation, Combinatoire et OpTimisation pour les TElécommunications | In French | → Computer simulation → Telecommunications → Algorithms | 
| MASF | Mathématiques et Applications aux Sciences Fondamentales | In French | → Mathematics | 
| MASS | Mathématiques Appliquées et Sciences Sociales | In French | → Social sciences → Mathematics | 
| MASS | Mathématiques Appliquées aux Sciences Sociales | In French | → Mathematics → Social sciences | 
| MAST | Ministère des Affaires Sociales et du Travail | In French | → Central administration → Social welfare → Labour, labour economics | 
| MASTER | Maîtriser, Auditer, Séduire, Traiter, Engager, Réussir | In French | → Trade | 
| MAT | Microangiopathie thrombotique | In French | → Blood and circulatory system → Pathology | 
| MatTe | Matériaux et Techniques | In French | → Serial publications, periodicals → Materials science | 
| MAUSS | Mouvement Anti-Utilitariste dans les Sciences Sociales | In French | → Organizations and associations → Social sciences | 
| MAV | Maison de l'Architecture et de la Ville | In French | → Regional planning → Architecture | 
| MAV | Malformation artérioveineuse | In French | → Pathology | 
| MAVN | Mesures alternatives des Vallées du Nord | In French | → Organizations and associations | 
| MBA | Master of Business Administration | In French | → Management → Specialized or polytechnical colleges → Economics | 
| MBA | Marge Brute d'Autofinancement | In French | → Accounting | 
| MBE | Marge Brute Énergies | In French | → Accounting → Energy economics | 
| MBS | Marge Brute Standard | In French | → Economics | 
| MCAE | Maison Communale d'Accueil de l'Enfance | In French | → Social welfare → Belgium | 
| MCBL | Microscope/Microscopie confocal(e) à balayage laser = CLSM | Confocal Laser Scanning Microscope/Microscopy | In English | In French | → Physics | 
| MCFDF | Ministère à la Condition Féminine et aux Droits de la Femme | In French | → Central administration → Feminism | 
| MCH | Maison Conseil Habitat | In French | → Accommodation | 
| MCHC | Moto Club Haute-Corrèze | In French | → Organizations and associations → Vehicle engineering | 
| MCI | Ministère du Commerce et de l'Industrie | In French | → Central administration → Trade → Industry, industrial policy | 
| MCJ | Maladie de Creutzfeldt-Jakob | In French | → Neurology | 
| MCL | Mouvement Communiste Libertaire | In French | → Communist parties → Anarchist organizations | 
| MCN | Mutuelle Cheminots Nord | In French | → Insurance → Rail transport engineering → Transport and postal services → France | 
| MCO | Maintien en Condition Opérationnelle | In French | → Maintenance and logistics | 
| MCP | Mission de Coopération Phytosanitaire | In French | → Agricultural sciences | 
| MCP | Membrane Cofactor Protein | In French | → Proteins | 
| MCP | Mécanique Compacte Pilotée | In French | → Mechanical engineering | 
| MCR | Monte-Carlo Radiodiffusion | In French | → Telecommunications | 
| MCR | Maintenance Corrective | In French | → Maintenance and logistics | 
| MDC | Mouvement Des Citoyens | In French | → Political parties and movements | 
| MDC | Mouvement pour le Changement Démocratique | In French | → Political parties and movements | 
| MDDEP | Ministère du Développement Durable, de l'Environnement et des Parcs du Québec | In French | → Central administration → Environmental protection → Threats to the environment → Canada | 
| MDE | Maîtrise de la Demande en Électricité | In French | → Energy economics → Electrical engineering | 
| MDE | Maîtrise de la Demande d'Énergie | In French | → Energy economics | 
| MDEE | Maison du Développement Économique et de l'Emploi | In French | → Economics → Labour, labour economics | 
| MDL | Manager Deuxième Ligne | In French | |
| MDM | Médecins du Monde | In French | → Organizations and associations → Medicine | 
| MDPH | Maison Départementale des Personnes Handicapées | In French | → Pathology | 
| MDQ | Mission Développement Qualité | In French | → Quality management | 
| MDR | Mouvement Démocratique Républicain | In French | → Political parties and movements | 
| MDS | Médicament Dérivé du Sang ou du plasma humain | In French | → Pharmacology, toxicology | 
| ME | Mise en Équivalence | In French | → Accounting | 
| MEA | Modèle d'Évaluation par Arbitrage | In French | → Finance | 
| MEDAF | Modèle d'Équilibre des Actifs Financiers | In French | → Finance | 
| MEDD | Ministère de l'Écologie et du Développement Durable | In French | → Central administration → 5023 |