| RET | Régie d'Electricité de Thônes | In French | → Electrical engineering |
| REVES | Rendu et Environnements VirtuEls Sonorisés | In French | → Computer-based techniques |
| RevHM | Revue d'Histoire Maghrébine | In French | → Serial publications, periodicals → History |
| REX | Retour d’EXpérience | In French | |
| RF | République Française | In French | → Politics |
| RFA | République Fédérale d'Allemagne = RFA | Republik Federal Alamagn | In Breton = FRG | Federal Republic of Germany | In English |
In French | → Geography |
| RFDA | Revue Française de Droit Administratif | In French | → 05 → Law, jurisprudence |
| RFF | Réseau Ferré de France (www.rff.fr) | In French | → Transport and postal services |
| RFI | Radio France International | In French | → Telecommunications |
| RFIA | Reconnaissance des Formes et Intelligence Artificielle | In French | → Congresses → Artificial intelligence → Computer-based techniques |
| RFO | Revue des Facultés catholiques de l'Ouest | In French | → Serial publications, periodicals → Roman catholic church → Higher education, universities |
| RFrM | Revue Francaise de Mécanique | In French | → Serial publications, periodicals → Mechanical engineering |
| RFS | Revue Française de Sociologie | In French | → Serial publications, periodicals → Sociology |
| RFSY | République Fédérale Socialiste de Yougoslavie = СФРЈ | Социјалистичка Федеративна Република Југославија | In Macedonian = SFRY | Socialist Federal Republic of Yugoslavia | In Serbian = SFRJ | Socijalistička Federativna Republika Jugoslavija | In Serbo-Croatian = JEFS | Jugoslaviako Errepublika Federal Sozialista | In Basque = RFSY | República Federal Socialista de Yugoslavia | In Spanish = SFRJ | Sozialistische Föderative Republik Jugoslawien | In German = SFRJ | Socialistická federativní republika Jugoslávie | In Czech = RFSI | República Federal Socialista de Iugoslàvia | In Catalan = RSFJ | Repubblica Socialista Federale di Jugoslavia | In Italian = SFRJ | Socjalistyczna Federacyjna Republika Jugosławii | In Polish = RSFJ | República Socialista Federal da Iugoslávia | In Portuguese = RSFI | Republica Socialistă Federativă Iugoslavia | In Romanian = СФРЮ | Социалистическая Федеративная Республика Югославия | In Russian = SFRJ | Socialistična federativna republika Jugoslavija | In Slovenian |
In French | → Geography → History |
| RG | Renseignements Généraux | In French | → Police |
| RGA | Recensement Général de l'Agriculture | In French | → Agricultural sciences |
| RGC | Rénovation Générale de Cuves | In French | → Mechanical engineering |
| RGC | Réalisation interne à Géométrie Contrainte | In French | → Computer-based techniques |
| RGC&U | Réseau Génie Civil et Urbain | In French | → Civil engineering → Building |
| RGD | Régie de Gestion des Données | In French | → Public administration, government → Computer science → Knowledge management |
| RGG | Réseau à Grand Gabarit | In French | → Transport and postal services |
| RGI | Référentiel Général d'Interopérabilité | In French | |
| RGN | Revue Générale Nucléaire | In French | → Serial publications, periodicals → Nuclear, atomic, and molecular physics → Nuclear technology |
| RGP | Recensement Général de la Population | In French | → Demography |
| RGR | Rassemblement des Gauches Républicaines | In French | → Political parties and movements |
| RH | Revue Historique | In French | → Serial publications, periodicals → History |
| RHPh | Revue d'Histoire de la Philosophie | In French | → Serial publications, periodicals → Philosophy, psychology → History |
| RHR | Revue de l'Histoire des Religions | In French | → Serial publications, periodicals → Religion, theology → History |
| RI | Relations Internationales | In French | → International relations |
| RI | Régiment d'Infanterie | In French | → 356 |
| RIAM | Réseau d'Innovation Audiovisuel et Multimédia | In French | → Telecommunications |
| RIAM | Recherche et Innovations en Audiovisuel et Multimédia | In French | → Computer-based techniques → Cinema, movies |
| RIB | Réseau Innovation Biotechnologie | In French | → Biotechnology |
| RIB | Relevé d'Identité Bancaire | In French | → Banks |
| RIF | Rassemblement pour l'Indépendance et la souveraineté de la France | In French | → Political parties and movements |
| RIJ | Réseau International de la Jeunesse | In French | → Organizations and associations |
| RILEM | Réunion Internationale des Laboratoires pour l'Essai des Matériaux | In French | → Organizations and associations → Research institutes → 620 |
| RILEM | Réunion Internationale des Laboratoires et Experts des Matériaux, Systèmes de Constructions et Ouvrages | In French | → Building |
| RIMA | Revue de l'Institut des Manuscripts Arabes | In French | → Serial publications, periodicals → Manuscripts |
| RIP | Relevé d'Identité Postale | In French | → Banks |
| RIPh | Revue Internationale de Philosophie | In French | → Serial publications, periodicals → Philosophy, psychology |
| RIS | Revue, Informatique et Statistique dans les sciences humaines | In French | → Serial publications, periodicals → Computer-based techniques → Social sciences → Statistics |
| RISCPT | Registre International des Substances Chimiques Potentiellement Toxiques | In French | → Chemistry → Chemical technology |
| RITEAU | Réseau 'Eau et Technologies de l'environnement' | In French | → Nature → Environmental technology, water supply, waste management |
| RITMER | Réseau 'Pollutions marines accidentelles et conséquences écologiques sur le littoral' | In French | → Nature → Ecology |
| RMI | Revenu Minimum d'Insertion | In French | → Social welfare |
| RMM | Revue de Métaphysique et de Morale | In French | → Serial publications, periodicals → Metaphysics → Ethics |
| RMN | Résonance Magnétique Nucléaire = NMR | Nuclear Magnetic Resonance | In English = 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 French | → Medicine → Nuclear, atomic, and molecular physics → 629031 |
| RMNT | Réseau Micro et Nanotechnologies | In French | → Engineering, technology |
| RN | Route Nationale | In French | → Transport and postal services |
| RNB | Réseau National de Bassin | In French | → Hydrology |
| RNC | Réseau des Non Confédérés | In French | → Organizations and associations |
| RNDE | Réseau National des Données sur l'Eau | In French | → Organizations and associations → Hydrology → Environmental technology, water supply, waste management |
| RNIL | Réseau National d'Ingénierie Linguistique | In French | → Computer-based techniques → Linguistics |
| RNIS | Réseau Numérique à Intégration de Services | In French | → Telecommunications |
| RNOL | Réseau National d'Observation du Littoral | In French | → Environment, environmental sciences |
| RNP | Rassemblement National Populaire | In French | → Political parties and movements |
| RNPh | Revue Néoscolastique de Philosophie | In French | → Serial publications, periodicals → Philosophy, psychology |
| RNPP | Registre National des Personnes Physiques | In French | → Central administration |
| RNPP | Recettes Nettes Part Producteur | In French | → Cinema, movies |
| RNRE | Réseau National de Recherche et d'Éducation | In French | → Research policy → Networks, communication → Education |
| RNRS | Entreprise Nationale de Radiodiffusion Sonore (www.algerian-radio.dz) | In French | → Telecommunications |
| RNRT | Réseau National de Recherche en Télécommunications | In French | → Organizations and associations → Telecommunications |
| RNRT | Réseau National de la Recherche en Télécommunications | In French | → Organizations and associations → Telecommunications |
| RNTL | Réseau National de Recherche et d'Innovation en Technologies Logicielles | In French | → Software |
| RNTL | Réseau National des Technologies Logicielles | In French | → Organizations and associations → Software |
| RNTS | Réseau National 'Technologies pour la Santé' | In French | → Medicine |
| RNV | Réserve Naturelle Volontaire | In French | → Nature |
| ROC | Rassemblement des Opposants à la Chasse | In French | → Organizations and associations → Fishing, hunting |
| ROC | Reconnaissance Optique de Caractères = ORC | Optical Character Recognition | In English |
In French | → Writing systems → Computer-based techniques |
| ROMM | Revue de l‘Occident Musulman et de la Méditerranée | In French | → Serial publications, periodicals → Area studies |
| RP | Relations Publiques = PR | Public Relations | In English = RP | Relations Presse | In French |
In French | → Public relations |
| RP | Relations Presse = PR (look above) |
In French | → Newspapers, journalism → Public relations |
| RPDE | Réseau Partenarial des Données sur l'Eau | In French | → Organizations and associations → Hydrology → Environmental technology, water supply, waste management |
| RPF | Rassemblement du Peuple Français | In French | → Political parties and movements |
| RPF | Rassemblement Pour la France | In French | → Political parties and movements |
| RPFC | Rassemblement du Peuple Franc-Comtois | In French | → Political parties and movements |
| RPh | Revue de Philologie, de littérature et d'histoire ancienne | In French | → Serial publications, periodicals → Philology → Literature → History |
| RPhA | Revue de Philosophie Ancienne | In French | → Serial publications, periodicals → Philosophy, psychology |
| RPhL | Revue Philosophique de Louvain | In French | → Serial publications, periodicals → Philosophy, psychology |
| RPPST | Réseau pour la Prévention et le Progrès en Santé au Travail - Île-de-France | In French | → Labour, labour economics → Medicine |
| RPR | Rassemblement pour la République | In French | → Political parties and movements |
| RRIT | Réseau de Recherche et d'Innovation Technologique | In French | → Research policy → Engineering, technology |
| RRIT | Réseau(x) de Recherche et d'Innovation Technologique | In French | |
| RRMPA | Revue Roumaine de Mathématiques Pures et Appliquées | In French | → Serial publications, periodicals → Mathematics |
| RRMS | Réseau Romand de Médecine du Sport | In French | → Medicine → Sport, physical exercises |
| RRQ | Responsable Régional Qualité | In French | → Quality management |
| RSI | Radio Slovaquie Internationale (www.slovakradio.sk/inetportal/rsi/) | In French | → Telecommunications |
| RSRel | Recherches de Sciences Religieuses | In French | → Serial publications, periodicals → Religion, theology |
| RSS | Républiques Socialistes Soviétiques = RSS | Repubbliche Socialiste Sovietiche | In Italian = PSR | Padomju Sociālistiskajām Republikām | In Latvian = RSS | Republici Sovietice Socialiste | In Romanian = SSR | Sovjetskih Socialističnih Republik | In Slovenian |
In French | → Politics → Geography |
| RSSI | Responsable de la Sécurité des Systèmes d'Information = CISO | Chief Information Security Officer | In English |
In French | → Computer science |
| RT | Revue Thomiste | In French | → Serial publications, periodicals |
| RTA | Réseau Technologique d'Alsace | In French | → Engineering, technology |
| RTAGV | Réseau Temporaire d'Accueil des Gens du Voyage | In French | → Social sciences → Accommodation |
| RTBF | Radio-Television Belge de la communaute Francaise | In French | → Telecommunications |
| RTC | Réseau Téléphonique Commuté | In French | → Telecommunications |
| RTCP | Réseau Téléphonique Commuté Public = PSTN | Public Switched Telephone Network | In English = ТСОП | елефонная сеть общего пользования | In Russian |
In French | → Telecommunications |
| RTE | Réseau Technique Électricité | In French | → Electrical engineering |
| RTLM | Radio Télévision Libre des Mille Collines | In French | → Telecommunications |
| RTM | Réseaux, Télécoms et Multimedia | In French | → Networks, communication → Document processing → Telecommunications |
| RTRA | Réseau Thématique de Recherche Avancée | In French | → Research policy |
| RTT | Réduction du Temps de Travail | In French | → Labour, labour economics |
| RU | Restaurant Universitaire | In French | → Higher education, universities → 64 |
| RUO | Revue de l'Université d'Ottawa | In French | → Serial publications, periodicals |
| RUTMP | Réseau Universitaire Toulouse Midi-Pyrénées | In French | → Organizations and associations → Higher education, universities |
| RVA | Réseaux à Valeur Ajoutée | In French | → Networks, communication |
| RvAc | Revue d'Acoustique | In French | → Serial publications, periodicals → Acoustics |
| RVE | Rendez-Vous d'Évaluation | In French | → Education |
| RvGPG | Revue de Géographie Physique et de Géologie Dynamique | In French | → Serial publications, periodicals → Earth sciences → Geography |
| RVN | Réseau des Villes Numériques | In French | → Computer science |
| RVP | Rendez-Vous Pédagogique | In French | → Education |
| RvPA | Revue de Physique Appliquée | In French | → Serial publications, periodicals → Physics |
| RvPD | Revue du Palais de la Découverte | In French | → Serial publications, periodicals |
| RvRP | Revue Roumaine de Physique | In French | → Serial publications, periodicals → Physics |
| RVRP | Rendez-Vous Réussis avec la Presse | In French | → Public relations |
| RvRST | Revue Roumaine des Sciences Techniques - Série de Mécanique Appliquée | In French | → Serial publications, periodicals → Mechanical engineering |
| S | Sérine = S | Serine | In English = S | سيرين | In Arabic = S | Serina | In Catalan = S | Serin | In Czech = S | Serin | In Danish = S | Serin | In German = S | Serina | In Spanish = S | Serino | In Esperanto = S | 세린 | In Korean = S | Serin | In Croatian = S | Serin | In Indonesian = S | Serina | In Italian = S | סרין | In Hebrew = S | Serīns | In Latvian = S | Serin | In Letzeburgesh = S | Serinas | In Lithuanian = S | Serine | In Dutch = S | セリン | In Japanese = S | Serin | In Norwegian = S | Seryna | In Polish = S | Serina | In Portuguese = S | Серин | In Russian = S | Seriini | In Finnish = S | Serin | In Swedish = S | செர்ரீன் | In Tamil = S | Serin | In Turkish = S | Серин | In Ukrainian = S | 絲氨酸 | In Chinese |
In French | → Biochemistry, biophysics |
| S | Soufre = S | Swawel | In Afrikaans = S | كبريت | In Arabic = S | Azufre | In Asturian = S | Kükürd | In Azerbaijani = S | Сера | In Belarusian = S | Сяра | In Bulgarian = S | গন্ধক | In Bengali = S | Sumpor | In Bosnian = S | Sofre | In Catalan = S | Zolfu | In Corsican = S | Síra | In Czech = S | Sylffwr | In Welsh = S | Svovl | In Danish = S | Schwefel | In German = S | Θείο | In Greek = S | Sulfur | In English = S | Sulfuro | In Esperanto = S | Azufre | In Spanish = S | Väävel | In Estonian = S | Sufre | In Basque = S | گوگرد | In Persian = S | Rikki | In Finnish = S | Solfar | In Friulian = S | Xofre | In Galician = S | גופרית | In Hebrew = S | गन्धक | In Hindi = S | Sumpor | In Croatian = S | Souf | HT = S | Kén | In Hungarian = S | Ծծումբ | In Armenian = S | Belerang | In Indonesian = S | Sulfo | In Ido = S | Brennisteinn | In Icelandic = S | Zolfo | In Italian = S | 硫黄 | In Japanese = S | 황 | In Korean = S | Kibrît | In Kurdish = S | Schwiefel | In Letzeburgesh = S | Solfer | LI = S | Siera | In Lithuanian = S | Sērs | In Latvian = S | Pungatara | In Māori = S | Сулфур | In Macedonian = S | ഗന്ധകം | In Malayalam = S | Хүхэр | In Mongolian = S | सल्फर | MR = S | Swevel | NDS = S | Zwavel | In Dutch = S | Svovel | In Nynorsk = S | Svovel | In Norwegian = S | Sulfre | NOV = S | Sofre | In Occitan = S | Siarka | In Polish = S | Enxofre | In Portuguese = S | Salina | In Quechua = S | Sulf | In Romanian = S | Сера | In Russian = S | Surfi | In Sicilian = S | Sumpor | In Serbo-Croatian = S | Síra | In Slovak = S | Žveplo | In Slovenian = S | Squfuri | SQ = S | Сумпор | In Serbian = S | Walirang | SU = S | Svavel | In Swedish = S | Sulfuri | In Swahili = S | கந்தகம் | In Tamil = S | గంధకము | TE = S | กำมะถัน | In Thai = S | Kükürt | In Turkish = S | Сірка | In Ukrainian = S | Oltingugurt | In Uzbek = S | Lưu huỳnh | In Vietnamese = S | שװעבל | In Yiddisch = S | 硫 | In Chinese |
In French | → Chemistry |
| S&T | Sciences et Technologie = CyT | Ciencia y Tecnología | In Spanish = S&T | Science and Technology | In English = C&T | Ciência e Tecnologia | In Portuguese |
In French | → Mathematics and natural sciences → Engineering, technology |
| S2E | Surveillance Spatiale des Épidémies | In French | → Infectious diseases |
| S3IT | Schéma Stratégique des Systèmes d'Information et des Télécommunications | In French | → Computer science → Telecommunications |
| SA | Société Anonyme = NV | Naamloze Vennootschap | In Dutch = SA | Sociedade Anónima | In Portuguese = SA | Sociedad Anónima | In Spanish = ΑΕ | Ανώνυμη Εταιρεία | In Greek = AŞ | Anonim Şirket | In Turkish |
In French | → Economics |
| SAAQ | Société de l'Assurance Automobile du Québec | In French | → Insurance → Automobile manufacturing → Transport and postal services |
| SABENA | Société Anonyme Belge d'Exploitation de la Navigation Aérienne | In French | → Transport and postal services |
| SACDE | Société d'Aide à la Création et au Développement des Entreprises | In French | → 3384 |
| SACEM | Société des Auteurs, Compositeurs et Éditeurs de Musique | In French | → Artistic property → Music → Literature |
| SACI | Société Anonyme de Crédit Immobilier | In French | → Finance → Accommodation |
| SACO | Service d'Assistance Canadienne aux Organismes = CESO | Canadian Executive Service Organization | In English |
In French | → Organizations and associations → Development |
| SACSO | Suspension ACtive pour essais en SOufflerie | In French | → Physics → Vehicle engineering |
| SAD | Société Andine de Développement (www.caf.com) = CAF | Corporación Andina de Fomento | In Spanish = ADC | Andean Development Corporation | In English = CAF | Corporação Andina de Fomento | In Portuguese |
In French | → International relations → Development |
| SADIEau | Système Africain de Documentation et d'Information sur l'Eau = AWIS | African Water Information (and Documentation) System | In English |
In French | → Knowledge management → Hydrology → 626 → Environmental technology, water supply, waste management |
| SADIEau | Système Africain de Documentation et d'Information sur l'Eau | In French | → Knowledge management → 626 → 627 |
| SAE | Système d'Archivage Électronique | In French | → Knowledge management |
| SAES | Société des Anglicistes de l'Enseignement Supérieur (www.saesfrance.org) | In French | → Organizations and associations → Education → Language, linguistics, literature |
| SAFER | Société d'Aménagement Foncier et d'Établissement Rural | In French | → Regional planning |
| SAFIR | Service Achats de la Filière Ingénierie Réseaux | In French | |
| SAGE | Schéma d'Aménagement et de Gestion des Eaux | In French | → Hydrology → 626 → 627 |
| SAGEM | Société d’Applications Générales d’Électricité et de Mécanique | In French | → Mechanical engineering → Electrical engineering |
| SAH | Sérum-Albumine Humaine | In French | → Blood and circulatory system → Pharmacology, toxicology |
| SAHS | Service d'Accueil et d'Hébergement Social | In French | → Social welfare → Accommodation |
| SAMARI | Support pédagogique pour l’Amélioration de la MAîtrise des RIsques | In French | |
| SAN | Syndicat d'Agglomération Nouvelle | In French | → Public administration, government |
| SAnAp | Suppléments aux Annales d'Astrophysique | In French | → Serial publications, periodicals → Astronomy |
| SANDRE | Service d'Administration Nationale des Données et Référentiels sur l'Eau | In French | → Central administration → Hydrology → 627 → Environmental technology, water supply, waste management |
| SAP | Section des Atterrissages et Parachutages | In French | → 358 → History |
| SAPAR | Société Auto-Parc Agglomération Rennaise | In French | → Transport and postal services |
| SAPN | Société d'Autoroute Paris-Normandie | In French | → Transport and postal services |
| SAPRR | Société d'Autoroute Paris-Rhin-Rhône | In French | → Transport and postal services |
| SARA | Simulateur Avancé pour la Recherche (dans le domaine de l')Automobile | In French | → Automobile manufacturing |
| SARI | Surveillance Automatisée des Routes pour l'Information des conducteurs et des gestionnaires | In French | → Transport and postal services |
| SARL | Société à Responsabilité Limitée | In French | → 334 |
| SAS | Société par Actions Simplifiée | In French | → 334 |
| SATESE | Service d'Assistance Technique aux Exploitants de Stations d'Épuration | In French | → Applied sciences, technology |
| SATEV | Syndicat des Agences de Presse Télévisées | In French | → Organizations and associations → Newspapers, journalism → Telecommunications |
| SAU | Surface Agricole Utile | In French | → Agricultural sciences |
| SAUR | Société d’Aménagement Urbain et Rural | In French | → Civil engineering → Regional planning |
| SBA | Small Business Act | In French | → Economics |
| SBBE | Sciences de la Beauté et du Bien-Être | In French | → Medicine → Chemical technology |
| SBCN | Société de BioChromatographie et Nanoséparations = SBCN | Society for BioChromatography and NanoSeparations | In English |
In French | → Organizations and associations → Biochemistry, biophysics |
| SBV | Société Bretonne de Vexillologie = МРТ | Македонска радио-телевизија | In Macedonian = MRT | Macedonian Radio-Television | In English = KVV | Kevarzhe Vannielouriezh Vreizh | In Breton |
In French | → Organizations and associations → 9299 |
| Sc&Te | Sciences et Techniques | In French | → Serial publications, periodicals → Mathematics and natural sciences → Applied sciences, technology |
| SCA | Syndrome Coronarien Aigu | In French | → Blood and circulatory system → Cardiology |
| SCA | Société en Commandite par Actions | In French | → Finance |
| SCA | Service Central Automobile | In French | → Public administration, government → Automobile manufacturing |
| SCAC | Service de Coopération et d'Action Culturelle | In French | → International relations → Civilization, culture, progress → Arts |
| SCAIC | Société Canadienne d'Allergie et d'Immunologie Clinique | In French | → Organizations and associations → Immunology and allergy |
| SCAM | Société Civile des Auteurs Multimédia (www.scam.fr) | In French | → Organizations and associations → Computer science → Cinema, movies |
| SCARE | Syndicat des Cinémas d'Art, de Répertoire et d'Essai | In French | → Organizations and associations → Cinema, movies |
| SCC | Syndrome du Canal Carpien | In French | → 6167 → Neurology |
| SCCRS | Service Central des Compagnies Républicaines de Sécurité | In French | → Police |
| SCDC | Service Central de Documentation Criminelle | In French | → Police |
| SCDP | Société des Charbonnages du Dong Trieu | In French | → Mining |
| SCEA | Société Civile d’Exploitation Agricole | In French | → Organizations and associations → Agricultural sciences |
| SCES | Sous-Comité de l'Évaluation des Stocks | In French | |
| SCET | Société Centrale pour l’Équipement du Territoire | In French | → Civil engineering → Building |
| SCI | Société Civile Immobilière | In French | → Organizations and associations → Accommodation |
| SCIC | Société Centrale Immobilière de la Caisse des dépôts | In French | → Accommodation |
| SCIJ | Service Central de l'Identité Judiciaire | In French | → Police |
| SCODRACO | Section Centrale Opérationnelle de Documentation, du Renseignement et d'Analyse du Crime Organisé | In French | → Police |
| SCOP | Surface en Céréales, Oléagineux et Protéagineux | In French | → Agricultural sciences |
| SCOP | Société Coopérative Ouvrière de Production | In French | → Labour, labour economics |
| SCP | Société Canadienne de Psychologie = CPA | Canadian Psychological Association | In English |
In French | → Organizations and associations → Psychology |
| SCRS | Service Canadien du Renseignement de Sécurité | In French | → Police |
| SCS | Solutions Communicantes Sécurisées | In French | → Software → Networks, communication → Telecommunications |
| SCTIP | Service de Coopération Technique Internationale de Police | In French | → International relations → Police |
| SCUIO | Service Commun Universitaire d'Information et d'Orientation | In French | → Labour, labour economics → Higher education, universities |
| SCV | Service Civil Volontaire | In French | |
| SDA | Service Départemental de l'Architecture | In French | → Regional administration → Architecture |
| SDAGE | Schéma Directeur d'Aménagement et de Gestion des Eaux | In French | → Hydrology → Environmental technology, water supply, waste management |
| SDAI | Sous-Direction des Affaires Internationales | In French | → International relations |
| SDAT | Sous-Direction Antiterroriste (de la Police Judiciaire) | In French | → Police |
| SDAU | Schéma Directeur d'Aménagement et d'Urbanisme | In French | → Regional planning |
| SDBDIS | Sous-Direction des Bibliothèques et De l'Information Scientifique | In French | → Central administration → Libraries → Mathematics and natural sciences |
| SDER | Schéma Directeur de l'Exploitation Routière | In French | → Transport and postal services |
| SDF | Sans Domicile Fixe | In French | → Accommodation |
| SDIG | Société pour le Développement de l’Industrie du Gaz | In French | → Energy economics |
| SDIS | Service Départemental d’Incendie et de Secours | In French | → Municipal administration |
| SDRT | Soutien aux Diplômes de Recherche Technologique | In French | → Specialized or (poly)technical colleges |
| SDVP | Schéma Départemental à Vocation Piscicole | In French | → Fishing, hunting |
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In French | → Chemistry |