| SE | Système d'Exploitation | In French | → 00445 |
| SEACE | Service Études et Appuis Contrôle Électrique | In French | → Electrical engineering |
| SEB | Société d'Embouteillage de Bourgogne | In French | → Beverage industry |
| SEBC | Système Européen de Banques Centrales = ESCB | Europski sistem centralnih banaka | In Bosnian = SEBC | Sistema Europeu de Bancs Centrals | In Catalan = ESCB | Det Europæiske System af Centralbanker | In Danish = ESZB | Europäisches System der Zentralbanken | In German = ΕΣΚΤ | Ευρωπαϊκό Σύστημα Κεντρικών Τραπεζών | In Greek = ESCB | European System of Central Banks | In English = ESCB | Eŭropa Sistemo de Centraj Bankoj | In Esperanto = SEBC | Sistema Europeo de Bancos Centrales | In Spanish = EKPS | Euroopa Keskpankade Süsteemi | In Estonian = KBER | Központi Bankok Európai Rendszere | In Hungarian = SEBC | Sistema Europeo delle Banche Centrali | In Italian = ESCB | Europees Stelsel van Centrale Banken | In Dutch = ESSB | Det europeiske systemet av sentralbanker | In Norwegian = ESBC | Europejski System Banków Centralnych | In Polish = SEBC | Sistema Europeu de Bancos Centrais | In Portuguese = ЄСЦБ | Європейська система центральних банків | In Ukrainian = ESCB | Európsky systém centrálnych bánk | In Slovak = ECBS | Europeiska centralbankssystemet | In Swedish |
In French | → Banks → European Union |
| SÉCAM | Séquentiel Couleur à Mémoire | In French | → Telecommunications |
| SECTM | Société d’Électricité et de Thermique du Centre et du Midi | In French | → Energy economics → Electrical engineering |
| SEDPA | Syndicat des Entreprises de Distribution de Programmes Audiovisuels | In French | → Organizations and associations → Cinema, movies → Telecommunications |
| SEE | Société des Électriciens et des Électroniciens (www.see.asso.fr) | In French | → Organizations and associations → Electrical engineering → Electronics |
| SEE | Service de l'Énergie de l'État | In French | → Central administration → Energy economics |
| SEEL | Syndicat des Éditeurs de Logiciels de Loisirs | In French | → Organizations and associations → Software |
| SEF | Section Économique et Financière | In French | → Police → Economics → Finance |
| SEFA | Service d'Exploitation de la Formation Aéronautique | In French | → Specialized or (poly)technical colleges → Aeronautics, aircraft |
| SEFTI | Specialized Fund for Therapeutic Innovation | In French | → Finance |
| SEG | Société Française de Gynécologie | In French | → Organizations and associations → Gynaecology |
| SEGPA | Section d'Enseignement Général et Professionnel Adapté | In French | → Education → Labour, labour economics |
| SEGUR | (Intégration de la) Sécurité routière dans la Gestion Urbaine | In French | → Transport and postal services → Regional planning |
| SEIMAT | Syndicat des Entreprises Internationnales de Matériels de Travaux Publics, Mines et Carrières, Bâtiment et Levage, Manutention (www.seimat.com) | In French | → Organizations and associations → Mining → Civil engineering → Building |
| SEINO | Salons de l’Économie et de l’Industrie du Nord-Ouest | In French | → Economics → Industry, industrial policy |
| SEL | Société d'Exercice Libéral | In French | → 334 |
| SEL | Système d'Échange Local | In French | → Economics |
| SELF | Société d'Ergonomie en Langue Française | In French | → Organizations and associations |
| SELL | Syndicat des Éditeurs de Logiciel de Loisirs (www.sell.fr) | In French | → Organizations and associations → Software → Entertainment |
| SELL | Syndicat des Éditeurs de Logiciel de Loisir (www.sell.fr) | In French | → Organizations and associations → Software → Entertainment |
| SEM | Service d'Économie Maritime | In French | → Economics → Marine research, oceanography → Fishing, hunting |
| SEM | Société d'Économie Mixte | In French | → Economics → Public administration, government |
| SEMA | Search Engine Marketing Association | In French | → Associations → Internet → 659 |
| SEMIDE | Système Euro-Méditerranéen d'Information sur les savoir-faire dans le Domaine de l'Eau | In French | |
| SENE | Système Électrique Nord-Est | In French | → Electrical engineering |
| SEP | Société Européenne de Propulsion | In French | → Vehicle engineering |
| SEP | Sclérose en plaques | In French | → Pathology |
| SEPPE | Soutien à l'Élaboration et au Portage de Projets Européens | In French | → Research policy |
| SEPRO | Société d'Exploitation des Plateformes de Recrutement et d'Orientation | In French | → Labour, labour economics → Education |
| SEPTEN | Service Études et Projets Thermiques Et Nucléaires | In French | → Energy economics → Nuclear technology |
| SER | Sources d'Énergie Renouvelable | In French | → Energy economics |
| SERA | Société d'Étude et Réalisation Automobile | In French | → Automobile manufacturing |
| SERAA | Système Électrique Rhône-Alpes Auvergne | In French | → Electrical engineering |
| SERAM | Société d'Études et de Recherches de l'École Nationale Supérieure d'Arts et Métiers | In French | → Research policy → Specialized or (poly)technical colleges → Engineering, technology |
| SERAPHIS | Société d'Etudes et de Recherches Philosophiques et HIStoriques | In French | → Organizations and associations → Philosophy, psychology → History |
| SERCE | Syndicat des Entrepreneurs de Réseaux et de Constructions Électriques | In French | → Electrical engineering → Civil engineering |
| SERNAM | SERvice NAtional de Messageries | In French | → Transport and postal services |
| SESAME | Session d'Épreuves Spécifiques à l'Admission au Management Européen et international | In French | → Management → Education |
| SESAME | Système d'Exploration de Séquences Audiovisuelles et Multimédias Enrichi par l'Expérience | In French | → Computer-based techniques → Cinema, movies |
| SESAME | Soutien aux Équipes Scientifiques pour l'Acquisition de Moyens Expérimentaux | In French | → 00186 |
| SESE | Système Électrique Sud-Est | In French | → Electrical engineering |
| SESMAT | Santé Et Satisfaction des Médecins Au Travail | In French | → Labour, labour economics → Medicine |
| SESSI | Service des Études et des Statistiques Industrielles | In French | → Statistics → Economics |
| SET | Système Électrique Transport | In French | → Electrical engineering |
| SETC | Système Européen de Transfert de Crédits | In French | → Education |
| SETC | Société d'Électronique et de Télécommunication du Centre | In French | → Electronics → Telecommunications |
| SETC | Société d'Exploitation des Transports Chazot | In French | → Transport and postal services |
| SETC | Société d'Exploitation du Tourisme Caribéen | In French | → Tourism |
| SETHY | Société pour l’Environnement et les Travaux HYdrauliques | In French | → Civil engineering |
| SETRA | Service d'Études Techniques des Routes et Autoroutes | In French | → Civil engineering → Transport and postal services |
| SETRAL | SErvice des TRAnsports Lourds | In French | → Transport and postal services |
| SEUL | Syndicat des Employés de l’Université Laurentienne = LUSU | Laurentian University Staff Union | In English |
In French | → Organizations and associations → Labour, labour economics → Higher education, universities |
| SEVN | Syndicat de l’Édition Vidéo Numérique | In French | → Organizations and associations → Computer-based techniques → Telecommunications |
| SEVN | Syndicat de l'Édition Vidéo Numérique (www.sevn.fr) | In French | → Organizations and associations → Cinema, movies |
| SFAI | Syndicat Français des Artistes Interprètes | In French | → Organizations and associations → Cinema, movies |
| SFAIC | Société Française d'Allergologie et d'Immunologie Clinique | In French | → Organizations and associations → Immunology and allergy |
| SFAR | Société Française d'Anesthésie et de Réanimation | In French | → Organizations and associations → Anesthesiology |
| SFBMN | Société Française de Biologie et Médecine Nucléaire | In French | → Organizations and associations → Biological sciences → Medicine |
| SFC | Société Française du Cancer | In French | → Organizations and associations → Oncology |
| SFC | Société Française de Céramique | In French | → Organizations and associations → 666 |
| SFCI | Société Française de Construction Immobilière | In French | → Building |
| SFDRMG | Société Française de Documentation et de Recherche en Médecine Générale | In French | → Organizations and associations → Medicine |
| SFEN | Société Française d'Énergie Nucléaire | In French | → Organizations and associations → Energy economics → Nuclear technology |
| SFEN | Société Française pour l’Énergie Nucléaire | In French | → Organizations and associations → Energy economics → Nuclear technology |
| SFHTA | Société Française d'Hypertension Artérielle | In French | → Organizations and associations → Blood and circulatory system → Cardiology |
| SFI | Société Financière Internationale = IFS | Internacia Financ-Societo | In Esperanto = IFC | International Finance Corporation | In English |
In French | → International relations → Finance |
| SFIC | Syndicat Français de l'Industrie Cimentière | In French | → Organizations and associations → Civil engineering → Building |
| SFIO | Section Française de l’Internationale Ouvrière | In French | → Political parties and movements |
| SFIO | Section Française de l'Internationale Ouvrière | In French | → Political parties and movements |
| SFMC | Société des Forces Motrices du Châtelot | In French | → Energy economics |
| SFMH | Sondeur Multifaisceaux Halieutique | In French | → Marine research, oceanography |
| SFMS | Société Française de Médecine du Sport | In French | → Organizations and associations → Medicine → Sport, physical exercises |
| SFMS | Societé Francophone de Médecine Sexuelle | In French | → Organizations and associations → Sexual problems → Urology → Applied sciences, technology |
| SFNEP | Société Française de Nutrition Entérale et Parentérale | In French | → Nutrition |
| SFO | Société Française d’Optique | In French | → Organizations and associations → Optics |
| SFOG | Société Française d'Oncologie Gynécologique | In French | → Organizations and associations → Oncology → Gynaecology |
| SFOP | Société Française d'Oncologie Pédiatrique | In French | → Organizations and associations → Oncology → Pediatry |
| SFPC | Société Française de Pharmacie Clinique (www.adiph.org/sfpc/) | In French | → Organizations and associations → Pharmacology, toxicology |
| SFPO | Société Française de Pharmacie Oncologique | In French | → Organizations and associations → Pharmacology, toxicology → Oncology |
| SFR | Société Française de Rhumatologie (www.rhumatologie.asso.fr) | In French | → Organizations and associations → Medicine |
| SFR | Société Française de Radiotéléphone (www.sfr.fr) | In French | → Telecommunications |
| SFR | Société Française de Radiologie (www.sfr-radiologie.asso.fr) | In French | → Organizations and associations → Medicine |
| SFRO | Société Française de Radiothérapie Oncologique | In French | → Organizations and associations → Oncology |
| SFT | Société Française de Terminologie | In French | → Language, linguistics, literature |
| SFTC | Syndicat Français des Théâtres Cinématographiques | In French | → Organizations and associations → Cinema, movies → Theatre |
| SFU | Société des Fonderies d’Ussel | In French | → Metallurgy |
| SFV | Société Française de Vexillologie | In French | → Organizations and associations → 9299 |
| SG | Services Généraux | In French | |
| SG | Secrétariat Général | In French | |
| SGAM | Société Générale Asset Management | In French | → Finance |
| SGAR | Secrétariat Général pour les Affaires Régionales | In French | → Regional administration |
| SGASU | Secrétaire Général d'Administration Scolaire et Universitaire | In French | → Public administration, government → Education |
| SGBD | Système de Gestion de Base de Données = DBMS | Data Base Management System | In English = SŘBD | Systém řízení báze dat | In Czech = SGBD | Sistema de Gestió de Bases de Dades | In Catalan = SMBD | Sistem manajemen basis data | In Indonesian = SUBP | Sustav za upravljanje bazom podataka | In Croatian = DBKS | Datu-baseak kudeatzeko sistema | In Basque = SGBD | Sistema de gestión de base de datos | In Spanish = DBMS | Datenbankmanagementsystem | In German |
In French | → Data |
| SGBDRO | Système de Gestion de Base de Données Relationnelle et Objet | In French | → Data |
| SGC | Système de Gestion de Contenu(s) = CMS | Content Management System | In English |
In French | → Document processing → Knowledge management |
| SGDG | Sans garantie du gouvernement | In French | → Industrial property |
| SGDT | Système de Gestion de Données Techniques | In French | → Data → Knowledge management |
| SGEN | Syndicat Général de l'Éducation Nationale | In French | → Organizations and associations → Labour, labour economics → Education |
| SGR | Saint-Gobain Recherche | In French | → 620 |
| SGTIF | Syndicat Général des Travailleurs de l'Industrie du Film (http://sgtif.fnsac-cgt.com) | In French | → Organizations and associations → Labour, labour economics → Cinema, movies |
| SGX | Service Général des Rayons X | In French | → Nuclear, atomic, and molecular physics |
| SH | Surface habitable | In French | → Accommodation |
| SHC | Société Historique du Canada = CHA | Canadian Historical Association | In English |
In French | → Organizations and associations → History |
| SHEM | Société Hydroélectrique du Midi | In French | → Electrical engineering |
| SHEMA | Société Hydraulique d'Études et de Missions d'Assistance | In French | → Energy economics |
| SHOB | Surface Hors Oeuvre Brute | In French | → Accommodation |
| SHON | Surface Hors Oeuvre Nette | In French | → Accommodation |
| SHS | Sciences Humaines et Sociales | In French | → Social sciences |
| SHU | Syndrome Hémolytique et Urémique = HUS | Hemolytic Uremic Syndrome | In English = SUH | Síndrome Urémico Hemolítico | In Spanish = HUS | Hämolytisch-urämisches Syndrom | In German = HUS | Hemolytisk uremisk syndrom | In Nynorsk = HUS | Hemolytisk-uremisk syndrom | In Norwegian = ХУС | Хемолитички уремијски синдром | In Serbian = HÜS | Hemolitik üremik sendrom | In Turkish |
In French | → Blood and circulatory system → Pathology |
| SHUa | Syndrome Hémolytique Urémique atypique | In French | → Pathology |
| SI | Système International | In French | → Standardization |
| SI | Soins Intensifs | In French | → Traumatology |
| SIA | Salon International de l'Agriculture | In French | → Agricultural sciences |
| SIA | Société des Ingénieurs de l'Automobile | In French | → Organizations and associations → Automobile manufacturing |
| SIA | Société suisse des Ingénieurs et des Architectes = SIA | Schweizerischer Ingenieur- und Architekten-Verein | In German |
In French | → Organizations and associations → Engineering, technology → Architecture |
| SIA | Société d'Investissement en Autriche | In French | → Finance |
| SIAE | Structure d’Insertion par l’Activité Économique | In French | → Organizations and associations → Economics → Social welfare |
| SIARV | Syndicat Intercommunal pour l'Assainissement de la Région de Villeneuve-Saint-Georges | In French | → Environmental technology, water supply, waste management |
| SIBLING | Small Integrin Binding Ligand N-linked Glycoprotein | In French | → Biochemistry, biophysics |
| SICAE | Syndicat d’Intérêt Collectif Agricole Électricité | In French | → Organizations and associations → Agricultural sciences → Electrical engineering |
| SICAHR | Société coopérative d’Intérêt Collectif Agricole d’Habitat Rural | In French | → Organizations and associations → Regional planning |
| SICCAM | Salon International des Centres de Contacts et d'Appels au Maroc | In French | |
| SICOGIF | Syndicat national des Industries de la COmmunication Graphique et de l'Imprimerie Françaises | In French | → Organizations and associations → Graphic industries, printing, publishing → Graphic arts |
| SICOP | Service d'Information et de Communication de la Police Nationale | In French | → Police → Central administration |
| SICR | Syndicat de l'Importation et du Commerce de la Réunion | In French | → Organizations and associations → Trade |
| SICT | Syndicat des Ingénieurs, Cadres, Techniciens | In French | → Organizations and associations → Labour, labour economics |
| SICTAM | Syndicat des Ingénieurs, Cadres, Techniciens et Agents de Maîtrise | In French | → Organizations and associations → Labour, labour economics |
| SICTOM | Syndicat Intercommunal de Collecte et Traitement des Ordures Ménagères | In French | → Nature → Environmental technology, water supply, waste management |
| SID | Système d’Information Documentaire | In French | → Knowledge management |
| SIDA | Syndrome d'Immuno-Déficience Acquise = AIDS | Acquired Immune Deficiency Syndrome | In English = VIGS | Verworwe Immuniteitsgebreksindroom | In Afrikaans = SIDA | Síndrome de Inmuno-Deficiencia Adquirida | In Occitan = SIDA | Sindromo di Imuno-Defekteso Aquirita | In Ido = AIDS | Akirita Imuno-Deficita Simptomaro | In Esperanto = SIDA | Sindrome d'inmunodefizienzia aquirita | In Aragonese = СПИН | Синдром на придобитата имунна недостатъчност | In Bulgarian = QİÇS | Qazanılmış İmmun Çatışmazlığı Sindromu | In Azerbaijani = SIDA | Síndrome d'Immunodeficiència Adquirida | In Catalan = HIES | Hartutako Immuno Eskasiaren Sindromea | In Basque = SIDA | Síndrome de Inmunodeficiencia Adquirida | In Spanish = SEIF | Siondróm Easpa Imdhíonachta Faighte | In Irish = AIDS | Annlochd Inneamh Dìon-Slàinte | GD = ՁԻԱՀ | Ձեռքբերովի Իմունային Անբավարվածության Համախտանիշ | In Armenian = SCDI | Syndromis Comparatis Defectu Immunitatis | In Latin = 에이즈 | 후천성 면역 결핍 증후군 | In Korean = შიდსი | შეძენილი იმუნური დეფიციტის სინდრომი | In Georgian = СИДА | Синдромот на стекнат имунолошки дефицит | In Macedonian = СИДА | синдром стеченог имунолошког дефицита | In Serbian = AIDS | Akvirírani imúnski deficítni sindróm | In Slovenian = СПИД | Синдром приобретённого иммунного дефицита | In Russian = SIDA | Sindromul Imunodeficienţei Autodobândite | In Romanian = UHCW | Unquy hark'aypa chaskisqa waqlliynin | In Quechua = SIDA | Síndrome da imunodeficiência adquirida | In Portuguese = AIDS | Hội chứng Suy giảm Miễn dịch Mắc phải | In Vietnamese = СНІД | Cиндром набутого імунодефіциту | In Ukrainian = AIDS | Alınğan İmmun Defisit Síndromı | In Tatar = UKIMWI | Upungufu wa Kinga Mwilini | In Swahili |
In French | → Immunology and allergy → Infectious diseases |
| SIE | Système d'Information Environnementale | In French | → Nature → Environment, environmental sciences |
| SIE | Système d'Information sur l'Eau | In French | → Knowledge management → Hydrology → 627 → Environmental technology, water supply, waste management |
| SIE | Stage d’Insertion en Entreprise | In French | → Labour, labour economics |
| SIER | Service Interdépartemental d'Exploitation Routière | In French | → Public administration, government → Transport and postal services |
| SIF | Service Information Famille | In French | |
| SIF | Service Informatique Fédéral | In French | → Computer science → Central administration |
| SIFAO | Salon Inversé de la Filière Automobile de l'Ouest | In French | → Automobile manufacturing |
| SIFC | Service de l'Instruction des Forces Canadiennes | In French | → 355 → Education |
| SIFCOM | Structures des Interfaces et Fonctionnalité des Couches Minces | In French | → Physics |
| SIFF | Syndicat des Industries Françaises du Fibres-ciment (www.fibres-ciment.fr) | In French | → Organizations and associations → Civil engineering → Building |
| SIG | Service d'Information du Gouvernement | In French | → 0594 → Central administration |
| SIG | Système d'Information Géographique = TAC | Traitement Communautaire Assertif | In French = PACT | Program Assertif Community Treatment | In English |
In French | → Software → Geography |
| SIGB | Système Intégré de Gestion de Bibliothèque = ILS | Integrated Library System | In English = АБИС | Автоматизированные библиотечные информационные системы | In Russian |
In French | → Knowledge management → Libraries → Software |
| SIIF | Société Internationale d'Investissements Financiers | In French | → Finance |
| SIL | Solidarité Internationale Libertaire = ILS | International Libertarian Solidarity | In English |
In French | → Organizations and associations → Political parties and movements |
| SILEC | Société Industrielle de Liaison Électrique | In French | → Electrical engineering |
| SIMAP | Service des Industries Manufacturières et des Activité Postales | In French | → Transport and postal services |
| SINETICS | SImulation NEutronique, Technique de l’Information et Calcul Scientifique | In French | → Nuclear technology |
| SIOP | Société Internationale d'Oncologie Pédiatrique | In French | → Oncology → Pediatry |
| SIPPEREC | Syndicat Intercommunal de la Périphérie de Paris pour l'Électricité et les RÉseaux de Communication | In French | → Organizations and associations → Electrical engineering → Telecommunications |
| SIRA | Système d'Informations pour la Recherche en Accidentologie | In French | → Data → Transport and postal services |
| SIRENE | Système Informatique pour le Répertoire des ENtreprises et Établissements | In French | → Computer-based techniques → Economics |
| SIRET | Service Informatique pour le Répertoire des ÉTablissements | In French | |
| SIRET | Système d’Identification du Répertoire des ÉTablissements | In French | → Economics |
| SIRH | Systèmes d'Information Ressources Humaines | In French | → Personnel management → Labour, labour economics |
| SIRIUS | Système d'Information pour un Réseau Intelligible aux Usagers | In French | → Transport and postal services |
| SIROCCO | SIgnal, RObotique, Communication, Contrôle et Optimisation | In French | → Electronics → Telecommunications |
| SIRS | Système d'Information à Référence Spatiale | In French | → Software → Geography |
| SIT | Système d'Information sur le Territoire = SIT | Sistema Informativo Territoriale | In Italian = SIT | System Informacji o Terenie | In Polish |
In French | → Software → Regional planning → Geography |
| SIT | Système d'Information Trafic | In French | → Transport and postal services |
| SITEF | Salon International pour les Technologies et les Énergies du Futur | In French | → Engineering, technology → 6208 |
| SITI | Système Intelligent pour le Transport Intermodal urbain de voyageurs | In French | → Transport and postal services |
| SITS | Syndicat général des Industries de matériels et procédés pour les Traitements de Surfaces | In French | → Organizations and associations → 620 |
| SIU | Société Internationale d'Urologie | In French | → Organizations and associations → Urology |
| SJF | Solidarité Jeunesse Francophone | In French | → Organizations and associations |
| SLEE | Société Lorraine d'Entreprises Électriques | In French | → Electrical engineering |
| SLF | Syndicat de la Librairie Française | In French | → Organizations and associations → Graphic industries, printing, publishing |
| sMCJ | Maladie de Creutzfeldt-Jakob sporadique | In French | → Neurology |
| SMCO | Syndicat Mixte de la Côte d'Opale | In French | |
| SMDD | Sommet Mondial sur le Développement Durable = CMDS | Cumbre Mundial sobre el Desarrollo Sostenible | In Spanish = WSSD | World Summit on Sustainable Development | In English = CMDS | Cúpula Mundial de Desenvolvimento Sustentável | In Portuguese |
In French | → International relations → Nature and society |
| SME | Système de Management Environnemental | In French | → Nature |
| SME | Système Monétaire Européen | In French | → Economics |
| SMEA | Système de Management Environnemental et d'Audit | In French | → Nature |
| SMEBA | Société Mutualiste des Étudiants de Bretagne-Atlantique | In French | → Insurance → Education |
| SMECO | Société Mutualiste des Étudiants du Centre-Ouest | In French | → Insurance → Education |
| SMEREB | Société Mutualiste des Étudiants des Régions Bourgogne et Franche-Comté | In French | → Insurance → Education |
| SMEREP | Société Mutualiste des Étudiants de la Région Parisienne | In French | → Insurance → Education |
| SMERRA | Société Mutualiste des Étudiants de la Région Rhône-Alpes | In French | → Insurance → Education |
| SMESO | Société Mutualiste des Étudiants du Sud-Ouest | In French | → Insurance → Education |
| SMI | Structure Militaire d'Intégration | In French | → 355 |
| SMIC | Salaire Minimum Interprofessionnel de Croissance | In French | → Labour, labour economics |
| SMIG | Salaire Minimum Interprofessionnel Garanti | In French | → Labour, labour economics |
| SMN | Société Morbihannaise de Navigation | In French | → Transport and postal services |
| SMP | Syndrome Myéloprolifératif | In French | → Blood and circulatory system → Pathology |
| SMPTE | Society of Motion Picture and Television Engineers | In French | → Cinema, movies |
| SMQ | Système de Management de la Qualité | In French | → Quality management |
| SMR | Service Médical Rendu | In French | → Pharmacology, toxicology |
| SMS | Sciences Médico-Sociales | In French | → Medicine |
| SMSI | Sommet Mondial sur la Société de l'Information | In French | → Telecommunications |
| SMVM | Schéma de Mise en Valeur de la Mer | In French | → Marine research, oceanography |
| SN | Sûreté Nationale | In French | → Police |
| SNA | Sous-marin Nucléraire d'Attaque | In French | → Nuclear technology → Military engineering |
| SNA | Syndicat National des Annuaires | In French | → Organizations and associations |
| SNAV | Syndicat National des Agences de Voyages | In French | → Organizations and associations → Tourism |
| SNBPE | Syndicat National du Béton Prêt à l'Emploi (www.snbpe.org) | In French | → Organizations and associations → Civil engineering → Building |
| SNC | Société Nationale de Colombiculture | In French | → Organizations and associations → Agricultural sciences |
| SNC | Solidarités Nouvelles face au Chômage | In French | → Organizations and associations → Labour, labour economics |