| TCMF | Total Compagnie Minière Française | In French | → Mining |
| TCMH | Teneur Corpusculaire Moyenne en Hémoglobine | In French | → Blood and circulatory system |
| TCO | Tomographie par Cohérence Optique | In French | |
| TCSP | Transport en Commun en Site Propre | In French | → Transport and postal services |
| TD | Télégramme Diplomatique | In French | → Central administration |
| TD | Travaux Dirigés | In French | → Education |
| TDA | Télédiffusion d'Algérie (www.tda.dz) | In French | → Telecommunications |
| TDAH | Trouble Déficit de l’Attention / Hyperactivité = ADHD | Attention Deficit / Hyperactivity Disorder | In English |
In French | → Neurology |
| TDF | Télédiffusion de France | In French | → Telecommunications |
| TDM | Tomodensitométrie | In French | |
| TDP | Taxe Dégressive de Protection | In French | → Taxes, duties |
| TE | Travail Étranger | In French | → Organizations and associations → Labour, labour economics → History |
| TE | Thrombocytémie Essentielle | In French | → Blood and circulatory system → Pathology |
| TEA | Tranche en Arrêt | In French | → Nuclear technology → Electrical engineering |
| TEAM | Test Européen d'Aptitude au Management | In French | → Management → Education |
| TEF | Tranche en Fonctionnement | In French | → Nuclear technology → Electrical engineering |
| TEF | Transfert Électronique de Fonds | In French | → Finance |
| TEL | Thèse en ligne | In French | → Libraries → Higher education, universities |
| TEM | Tranche en Marche | In French | → Nuclear technology → Electrical engineering |
| TEMASOL | Total EDF Maroc Solaire | In French | → Energy economics → Electrical engineering |
| TENERRDIS | Technologies Énergies Nouvelles Énergies Renouvelables Rhône-Alpes, Drôme, Isère, Savoie | In French | → 6219 |
| TEO | Transport Électricité Ouest | In French | → Electrical engineering |
| TEP | Tonne Équivalent Pétrole | In French | → Energy economics → 665 |
| TER | Transports Express Régional | In French | → Transport and postal services |
| TER | Travail d'Études et de Recherche | In French | → Research policy → Education |
| TERA | Transport Électricité Rhône-Alpes | In French | → Electrical engineering |
| TES | Transactions Électroniques Sécurisées | In French | → Networks, communication → Electronics → Telecommunications |
| TESE | Technologies et Économie des Sytèmes Électriques | In French | → Energy economics → Electrical engineering |
| TESE | Transport Électricité Sud-Est | In French | → Electrical engineering |
| TESO | Transport Électricité Sud-Ouest | In French | → Electrical engineering |
| TFA | Très Faible Activité | In French | → Nuclear technology |
| TFP | Tradition Famille Propriété | In French | → Roman catholic church → Modern spiritual movements |
| TGA | Techniques de Gestion Administrative | In French | → Management → Economics |
| TGC | Technique de Gestion Comptable | In French | → 567 |
| TGE | Très Grand(s) Équipement(s) | In French | → Engineering, technology |
| TGMH | Taux Globulaire Moyen d’Hémoglobine | In French | → Blood and circulatory system |
| TGV | Turbine - Gaz - Vapeur | In French | → Energy economics |
| TGV | Train à Grande Vitesse | In French | → Transport and postal services → Vehicle engineering |
| THADA | Trouble d'Hyperactivité Avec Déficit de l'Attention | In French | → Neurology |
| THC | Textile - Habillement - Cuir | In French | → Leather industry → Textile industry |
| THEMIS | Technologies et Modélisation des Infrastructures des Systèmes Électriques | In French | → Electrical engineering |
| THEMIS | Télescope Héliographique pour l'Étude du Magnétisme et des Instabilités | In French | → Astronomy |
| ThF | Thermique à Flamme | In French | → Energy economics |
| TI | Technologie Industrielle | In French | → Engineering, technology |
| TIA | Terminologie et Intelligence Artificielle | In French | → Computer-based techniques → Linguistics |
| TIC | Technologies de l'Information et de la Communication = TIC | Tecnologías de la Información y la Comunicación | In Spanish = IKT | Informations- und Kommunikationstechnologie | In German = ICT | Information and Communications Technology | In English = IKT | Informations- og kommunikationsteknologi | In Danish = IKT | Inligtings- en kommunikasietegnologie | In Afrikaans = ICT | Informatie- en Communicatietechnologie | In Dutch = TMK | Teknologi Maklumat dan Komunikasi | In Malay |
In French | → Computer science → Telecommunications |
| TICE | Traité d'Interdiction Complète des Essais nucléaires | In French | → International relations → Military engineering → Nuclear technology |
| TID | Tour International Danubien | In French | |
| TIE | Technologies et Innovation pour l’Entreprise | In French | → Engineering, technology |
| TIH | Thrombopénie Immunologique à l'Héparine | In French | → Immunology and allergy → Pathology |
| TIPA | Transfert Interbancaire de Paiements Automatisés | In French | → Banks |
| TIPP | Taxe Intérieure sur les Produits Pétroliers | In French | → Taxes, duties → 665 → Transport and postal services |
| TIRU | Traitement Industriel des Résidus Urbains | In French | → Environmental technology, water supply, waste management |
| TISI | Technologies de l’Information appliquées aux Systèmes Industriels | In French | → Computer-based techniques → Engineering, technology |
| TL | Transports Lausannois | In French | → Transport and postal services |
| TL | Tramways Lausannois | In French | → Transport and postal services |
| TL | Télé Liban | In French | → Telecommunications |
| TLF | Télévision de tous les Franciliens | In French | → Telecommunications |
| TLL | Télévision Locale Loire | In French | → Telecommunications |
| TM | Transplantation Médullaire | In French | → Surgery, orthopaedics, ophthalmology |
| TMA | Tierce Maintenance Applicative | In French | → Software |
| TMD | Transports de Marchandises Dangereuses | In French | → Transport and postal services |
| TMD | Transport de Matières Dangereuses | In French | → Transport and postal services → Chemicals |
| TMI | Taux de Mortalité Infantile = ММВБ | Московская межбанковская валютная биржа | In Russian = MICEX | Moscow Interbank Currency Exchange | In English = МБВБ | Мускав банксен валютă биржи | In Chuvash = AKB | Angka Kematian Bayi | In Indonesian = IMR | Infant Mortality Rate | In English = TMI | Taxa de Mortalidade Infantil | In Portuguese = TMI | Taxa de Mortalitat Infantil | In Catalan |
In French | → Statistics → Pediatry |
| TMN | Tétanos Maternel et Néonatal | In French | → Pathology |
| TMP | Télévision Mobile Personnelle | In French | → Telecommunications |
| TMP | Thermo-Mécanique et Plasticité | In French | → 620 → Mechanical engineering → Chemical technology |
| TMS | Troubles Musculo-Squelettiques | In French | → Pathology |
| TNP | Traité de Non Prolifération des armes nucléaires | In French | → International relations → Military engineering → Nuclear technology |
| TNS | Théâtre National de Strasbourg (www.tns.fr) | In French | → Theatre |
| TNS | Tahiti Nui Satellite (www.tns.pf) | In French | → Telecommunications |
| TNT | Trinitrotoluène = TNT | Trinitrotoluol | In German = TNT | Trinitrotoluè | In Catalan = TNT | Trinitrotoluen | In Czech = TNT | Trinitrotoluene | In English = TNT | Trinitrotolueno | In Esperanto = TNT | Trinitrotolueno | In Spanish = TNT | Trinitrotoluenori | In Basque = TNT | ترینیتروتولوئن | In Persian = TNT | Trinitrotoluene | In Italian = TNT | Trinitrotoluolas | In Lithuanian = TNT | Trinitrotolueen | In Dutch = TNT | Trinitrotoluen | In Nynorsk = TNT | Trinitrotoluen | In Norwegian = TNT | Trinitrotolueno | In Portuguese = TNT | Trinitrotoluen | In Romanian = TNT | Тринитротолуол | In Russian = TNT | Trinitrotoluen | In Slovenian = ТНТ | Тринитротоулен | In Serbian = TNT | ทีเอ็นที | In Thai = TNT | Trinitrotoluen | In Turkish = ТНТ | Тринітротолуол | In Ukrainian |
In French | → Chemicals → Military engineering |
| TNT | Télévision Numérique Terrestre | In French | → Telecommunications |
| TOC | Troubles Obsessionnels Compulsifs | In French | → Psychology → Neurology |
| TOL | Théâtre Ouvert Luxembourg | In French | → Theatre |
| TOM | Territoire d’Outre-Mer | In French | → Regional administration → Geography |
| TOMar | Travaux de l'Observatoire de Marseille | In French | → Serial publications, periodicals → Astronomy |
| TP | Temps de Prothrombine | In French | → Blood and circulatory system |
| TPI | Titre au Porteur Identifiable | In French | → Finance |
| TPIR | Tribunal Pénal International pour le Rwanda (www.ictr.org) = CNUCED | Conférence des Nations Unies sur le Commerce et le Développement | In French = UNCTAD | United Nations Conference on Trade and Development | In English = ЮНКТАД | Конференция на ООН за търговия и развитие | In Bulgarian = CNUCYD | Conferencia de las Naciones Unidas sobre Comercio y Desarrollo | In Spanish = KUNKD | Konferenco de la Unuiĝintaj Nacioj pri Komerco kaj Disvolvado | In Esperanto = UNCTAD | გაეროს ვაჭრობისა და განვითარების კონფერენცია | In Georgian = UNCTAD | การประชุมสหประชาชาติว่าด้วยการค้าและการพัฒนา | In Thai = UNCTAD | 聯合國貿易及發展委員會 | In Chinese = ICTR | International Criminal Tribunal for Rwanda | In English = TPIR | Tribunal Penal Internacional para Ruanda | In Spanish = MTKR | Międzynarodowy Trybunał Karny dla Rwandy | In Polish = MTTR | Medzinárodný Trestný Tribunál pre Rwandu | In Slovak |
In French | → United Nations → Law, jurisprudence |
| TPIY | Tribunal Pénal International pour l'ex-Yougoslavie (www.un.org/icty/) = ICTY | International Criminal Tribunal for the former Yugoslavia | In English = MKSJ | Međunarodni krivični sud za bivšu Jugoslaviju | In Bosnian = TPI | Tribunalul Penal Internaţional pentru fosta Iugoslavie | In Romanian = МБТЮ | Международный трибунал по бывшей Югославии | In Russian = MTTJ | Medzinárodný trestný tribunál pre bývalú Juhosláviu | In Slovak |
In French | → United Nations → Law, jurisprudence |
| TPN | Tarif de Première Nécessité | In French | → Prices → Electrical engineering |
| TPSGC | Travaux Publics et Services Gouvernementaux Canada | In French | → Public administration, government → Civil engineering |
| TQ | Temps de Quick | In French | |
| TraGe | Travaux Géophysiques | In French | → Serial publications, periodicals → Geophysics |
| TRE | Taux de Rendement Économique | In French | |
| TREN | TRansport et ÉNergie | In French | → Energy economics → Transport and postal services |
| TRG | Taux de Rendement Global | In French | |
| TROLL | Troupe Redonnaise Orientée Logiciel Libre | In French | → Software → Operating systems |
| TROPICS | TRansformations et Outils Informatiques Pour le Calcul Scientifique | In French | → Computer science → Mathematics |
| TRS | Taux de Rendement Synthétique | In French | |
| TSD | Traitement Spécial et Différencié | In French | |
| TSSLW | Travaux de la Société des Sciences et des Lettres de Wroclaw | In French | → Serial publications, periodicals → Mathematics and natural sciences → Language, linguistics, literature |
| TTD | Temps de Thromboplastine Dilué | In French | → Blood and circulatory system |
| TTENP | Transport Électricité Normandie Paris | In French | → Electrical engineering |
| TTP | Transports Terrestres Promotion | In French | → Transport and postal services |
| TTPA | Temps de Thromboplastine Partielle activée | In French | → Blood and circulatory system |
| TULIPE | Transfert d’Urgence de l’Industrie Pharmaceutique | In French | → Pharmacology, toxicology |
| TULIPE | Transfert d'Urgence de l'Industrie Pharmaceutique | In French | → Pharmacology, toxicology |
| TURP | Tarifs d'Utilisation des Réseaux Publics | In French | → Electrical engineering |
| TVA | Taxe sur la Valeur Ajoutée = BTW | Belasting op Toegevoegde Waarde | In Afrikaans = IVA | Impost sobre el valor afegit | In Catalan = PDV | Porez na dodatu vrijednost | In Bosnian = ДДС | Данъкът върху добавената стойност | In Bulgarian = VAT | Value Added Tax | In English = AVI | Aldonvalora imposto | In Esperanto = ΦΠΑ | Φόρος Προστιθέμενης Αξίας | In Greek = DPH | Daň z přidané hodnoty | In Czech = Moms | Meromsætningsafgift | In Danish = IVA | Impuesto al Valor Agregado | In Spanish = MwSt | Mehrwertsteuer | In German = BTW | Belasting over de Toegevoegde Waarde | In Dutch = MVA | Merverdiavgift | In Norwegian = PVM | Pridėtinės vertės mokestis | In Lithuanian = IVA | Imposta sul Valore Aggiunto | In Italian = VASK | Virðisaukaskattur | In Icelandic = PPN | Pajak Pertambahan Nilai | In Indonesian = Áfa | Általános forgalmi adó | In Hungarian = PDV | Porez na dodanu vrijednost | In Croatian = ALV | Arvonlisävero | In Finnish = מע"מ | מס ערך מוסף | In Hebrew = KDV | Katma Değer Vergisi | In Turkish = VAT | ภาษีมูลค่าเพิ่ม | In Thai = VAT | மதிப்புக் கூட்டு வரி | In Tamil = DPH | Daň z pridanej hodnoty | In Slovak = НДС | Налог на добавленную стоимость | In Russian = TVA | Taxa pe valoarea adăugată | In Romanian = IVA | Imposto sobre o Valor Acrescentado | In Portuguese = VAT | 增值税 | In Chinese |
In French | → Taxes, duties |
| TVFI | Télévision Française Internationale | In French | → Telecommunications |
| TVHD | Télévision Haute Définition | In French | → Telecommunications |
| TVP | Thrombose Veineuse Profonde | In French | → Blood and circulatory system → Pathology |
| TVSML | Télévision Mobile Sans Limite | In French | → Telecommunications |
| U | يورانيوم = U | Uranio | In Esperanto = U | Uranium | In French = U | Uran | ALS = U | Uran | In Azerbaijani = U | Уран | In Belarusian = U | Уран | In Bulgarian = U | ইউরেনিয়াম | In Bengali = U | Uranijum | In Bosnian = U | Urani | In Catalan = U | Uraniu | In Corsican = U | Uran | In Czech = U | Uran | In Danish = U | Uran | In German = U | Ουράνιο | In Greek = U | Uranium | In English = U | Uranio | In Spanish = U | Uraan | In Estonian = U | Uranio | In Basque = U | اورانیوم | In Persian = U | Uraani | In Finnish = U | Urani | In Friulian = U | Uranio | In Galician = U | אורניום | In Hebrew = U | Uranij | In Croatian = U | Iranyòm | HT = U | Urán | In Hungarian = U | Ուրան (տարր) | In Armenian = U | Uranium | In Indonesian = U | Uranio | In Ido = U | Úran | In Icelandic = U | Uranio | In Italian = U | ウラン | In Japanese = U | jinmrvurani | JBO = U | ಯುರೇನಿಯಮ್ | KN = U | 우라늄 | In Korean = U | Uranium | In Latin = U | Uran | In Letzeburgesh = U | Uranas | In Lithuanian = U | Urāns | In Latvian = U | യുറേനിയം | In Malayalam = U | Ilhuicateōtepoztli | En Nahuatl = U | Uran | NDS = U | Uranium | In Dutch = U | Uran | In Nynorsk = U | Uran | In Norwegian = U | Uran | In Polish = U | Urânio | In Portuguese = U | Uranyu | In Quechua = U | Uraniu | In Romanian = U | Уран | In Russian = U | यूरानियम | In Sanskrit = U | Uraniu | In Sicilian = U | Uranijum | In Serbo-Croatian = U | Urán | In Slovak = U | Uran | In Slovenian = U | Urani | SQ = U | Уранијум | In Serbian = U | Uran | In Swedish = U | Urani | In Swahili = U | யுரேனியம் | In Tamil = U | ยูเรเนียม | In Thai = U | Uranyo | In Tagalog = U | Uranyum | In Turkish = U | Уран | In Ukrainian = U | Urani | In Vietnamese = U | 鈾 | In Chinese |
In French | → Chemistry |
| U | Uranium = (look above) |
In French | → Chemistry |
| U2R | Union des Républicains Radicaux | In French | → Political parties and movements |
| U3M | Université du Troisième Millénaire | In French | → Higher education, universities |
| U3P | Union pour la Promotion de la Propulsion Photonique | In French | → Spaceflight engineering, astronautics |
| UA | Union des Anarchistes | In French | → Political parties and movements |
| UAM | Unité d'Appui Multimédia | In French | → Computer science → Document processing |
| UAPV | Université d'Avignon et des Pays de Vaucluse | In French | → Higher education, universities |
| UB | Unité Bethesda | In French | → Medicine |
| UBE | Université Bouddhique Européenne (www.bouddhisme-universite.org) | In French | → Education → Buddhism |
| UBF | Union Bouddhiste de France | In French | → Organizations and associations → Buddhism |
| UBO | Université de Bretagne Occidentale | In French | → Higher education, universities |
| UBP | Université Blaise Pascal | In French | → Higher education, universities |
| UC | Unité de Compte | In French | |
| UC | Unité de Conditionnement | In French | |
| UCAP | Union de la Communauté Algérienne de Paris | In French | → Organizations and associations |
| UCBL | Université Claude Bernard Lyon | In French | → Higher education, universities |
| UCBRP | Union pour la Coopération Bourgogne/Rhénanie-Palatinat | In French | → Organizations and associations → International relations |
| UCE | Union des Candidats Émergents | In French | → Political parties and movements |
| UCESG | Union du Corps Enseignant Secondaire Genevois | In French | → Organizations and associations → Education |
| UCI | Union Cycliste Internationale (www.uci.ch) | In French | → Organizations and associations → Sport, physical exercises |
| UCI | Union des Constructeurs Immobiliers | In French | → Organizations and associations → Building |
| UCL | Université Catholique de Louvain | In French | → Roman catholic church → Higher education, universities |
| UCLAT | Unité de Coordination de la Lutte Anti-Terroriste | In French | → Public administration, government |
| UCM | Union de Classes Moyennes | In French | → Organizations and associations → Labour, labour economics |
| UCMF | Union des Compositeurs de Musiques de Films (www.ucmf.fr) | In French | → Organizations and associations → Music → Cinema, movies |
| UCPTE | Union pour la Coordination de la Production et du Transport d’Électricité | In French | → Organizations and associations → Electrical engineering |
| UCRAM | Unité de Coordination et de Recherches Anti-Mafia | In French | → Police |
| UCV | Union du Commerce de Centre-Ville | In French | → Organizations and associations → Trade |
| UDA | Université d’Auvergne | In French | → Higher education, universities |
| UDA | Union Des Annonceurs | In French | → Organizations and associations → 659 |
| UDECAM | Union des Entreprises de Conseil et Achat Média | In French | → Organizations and associations → 659 |
| UDF | Union pour la Démocratie Française | In French | → Political parties and movements |
| UDIC | Union française des Distributeurs, Grossistes et Importateurs en Chaussures | In French | → Organizations and associations → Trade → Leather industry |
| UdPPC | Union des Professeurs de Physique et de Chimie | In French | → Education → Physics → Chemistry |
| UDR | Union des Démocrates pour la République | In French | → Political parties and movements |
| UDR | Union pour la Défense de la République | In French | → Political parties and movements |
| UDSR | Union Démocratique et Socialiste de la Résistance | In French | → Political parties and movements → History |
| UDT | Union Démocratique du Travail | In French | → Political parties and movements |
| UE | Union Européenne (http://europa.eu) = EU | European Union | In English = UE | Unió Europea | In Catalan = UE | Unaniezh Europa | In Breton = EU | Europäische Union | In German = UE | Unia Europejska | In Polish = EU | Europese Unie | In Afrikaans = UE | Unión Europeya | In Aragonese = EU | Evropská Unie | In Czech = ЕС | Европейският съюз | In Bulgarian = EU | Eùropejskô Ùnijô | In Kashubian = ΕΕ | Ευρωπαϊκή Ένωση | In Greek = EU | Europæiske Union | In Danish = UE | Undeb Ewropeaidd | In Welsh = EU | Eŭropa Unio | In Esperanto = JU | Jeropeeske Uny | In Frisian = AE | An tAontas Eorpach | In Irish = EB | Europar Batasuna | In Basque = EU | Europska Unija | In Croatian = UE | Unión Europea | In Spanish = EU | Euroopan unioni | In Finnish = EU | Evropska Unija | In Bosnian = UÛ | Unnion Ûropéenne | In Norman = ES | Europas Sājonga | In Baltic languages = UE | Uniaun Europeia | In Tetum = UE | Unyong Europeo | In Tagalog = EU | Európai Unió | In Hungarian = EU | Europeiska unionen | In Swedish = EU | Europana Uniono | In Ido = UE | Uni Eropa | In Indonesian = ESB | Evrópusambandið | In Icelandic |
In French | → International relations → European Union |
| UE | Unité d'Enseignement | In French | → Education |
| UEAPME | Union Européenne de l'Artisanat et des Petites et Moyennes Entreprises (www.ueapme.com) | In French | → Organizations and associations |
| UEAPME | Union Européenne de l’Artisanat et des Petites et Moyennes Entreprises | In French | → Organizations and associations → 3384 |
| UEAtc | Union Européenne pour l'Agrément technique dans la construction | In French | → Organizations and associations → Building |
| UEC | Union Européenne de Cyclisme | In French | → Organizations and associations → Sport, physical exercises |
| UEF | Unité équivalent fibrinogène | In French | → Physiology |
| UEF | Unité d'Enseignement et de Recherche | In French | → Research policy → Education |
| UEFA | Union Européenne de Football Association (www.uefa.com) = UEFA | Union of European Football Associations | In English |
In French | → Organizations and associations → Football and rugby |
| UEM | Union Européenne Motocyclisme | In French | → Organizations and associations → Transport and postal services |
| UEM | Union En Mouvement | In French | → Political parties and movements |
| UEM | Union économique et monétaire = UEM | Unión Económica y Monetaria | In Spanish = EMU | Economische Monetaire Unie | VLS = EMU | Economic and Monetary Union | In English = EMU | Ekonomiska och monetära unionen | In Swedish = UGiW | Unia Gospodarcza i Walutowa | In Polish = EMU | Economische en Monetaire Unie | In Dutch = EWG | Europäesch Wirtschafts- a Währungsunioun | In Letzeburgesh = EGMU | Európai Gazdasági és Monetáris Unió | In Hungarian = EWWU | Europäische Wirtschafts- und Währungsunion | In German = ØMU | Økonomiske og Monetære Union | In Danish = EMU | Evropská měnová unie | In Czech = UEM | Unione Economica e Monetaria | In Italian = UEM | Unió econòmica i monetària | In Catalan |
In French | → Economics → European Union |
| UEMOA | Union Économique et Monétaire Ouest-Africaine | In French | → International economic cooperation |
| UEO | Union de l'Europe Occidentale = WEU | Western European Union | In English = WEU | Westeuropäische Union | In German |
In French | → International relations |
| UEP | Unité d'Experience Professionnelle | In French | → Labour, labour economics |
| UEP | Union des Étudiants pour le Progrès | In French | → Political parties and movements |
| UEPG | Union Européenne des Producteurs de Granulats (www.uepg.eu) | In French | → Organizations and associations → Civil engineering → Building |
| UER | Union Européenne de Radio-télévision (www.ebu.ch) = EBU | European Broadcasting Union | In English = ЕСРТ | Европейски съюз за радио и телевизия | In Bulgarian = ЄТС | Європейський Телерадіомовний Союз | In Ukrainian = ЕВС | Европейский вещательный союз | In Russian = UER | União Europeia de Radiodifusão | In Portuguese |
In French | → Organizations and associations → Telecommunications |
| UF | Union des Fabricants | In French | → Organizations and associations → Industrial property |
| UFAR | Union Française des Anciens du Rugby | In French | → Organizations and associations → Football and rugby |
| UFCC | Union Française du Commerce Chimique | In French | → Organizations and associations → Trade → Food technology |
| UFE | Union Française de l’Électricité | In French | → Organizations and associations → Electrical engineering |
| UFE | Union Française pour l'Espéranto (http://esperanto-france.org) = UFE | Unifio Franca por Esperanto | In Esperanto |
In French | → Organizations and associations |
| UFF | Union des Femmes Françaises | In French | → Political parties and movements → History |
| UFFEJ | Union Française du Film pour l'Enfance et la Jeunesse (www.uffej.net) | In French | → Organizations and associations → Cinema, movies → Education |
| UFM | Union Française des Maréchaux-ferrants | In French | → Organizations and associations → Applied sciences, technology |
| UFM | Utilisateurs Francophones de Medidoc/Clinidoc | In French | → Organizations and associations → Computer science → Medicine |
| UFP | Union des Forces de Progrès | In French | → Political parties and movements |
| UFP | Union des Forces Progressistes | In French | → Political parties and movements |
| UFP | Usinage et Formage des Plastiques | In French | → Plastic industry |
| UFR | Unité de Formation et de Recherche | In French | → Research policy → Education |
| UGB | Unité Gros Bétail | In French | → Agricultural sciences |
| UGFR | Union Gaulliste pour une France Républicaine | In French | → Political parties and movements |
| UGIF | Union Générale des Israélites de France | In French | → Organizations and associations → Political parties and movements |
| UHP | Université Henri Poincaré (www.uhp-nancy.fr) | In French | → Higher education, universities |
| UIA | Union Internationale des Architectes (www.uia-architectes.org) | In French | → Organizations and associations → Architecture |
| UIC | Union des Industries Chimiques (www.uic.fr) | In French | → Organizations and associations → Chemical technology |
| UIC | Union Internationale des Chemins de fer | In French | → Transport and postal services |
| UICN | Union Internationale pour la Conservation de la Nature | In French | → Organizations and associations → Nature |
| UIDH | Union Interafricaine des Droits de l'Homme (www.iuhr.org) = IUHR | Inter-African Union of Human Rights | In English |
In French | → International relations → Fundamental rights |
| UIMM | Union des Industries et Métiers de la Métallurgie (www.uimm.fr) | In French | → Organizations and associations → Metallurgy |
| UIOM | Usine d'Incinération des Ordures Ménagères | In French | → Environmental technology, water supply, waste management |
| UIT | Union Internationale des Télécommunications = ITU | International Telecommunication Union | In English = IUT | Internacia Unio pri Telekomunikado | In Esperanto |
In French | → Organizations and associations → Telecommunications |
| UIV | Urographie intraveineuse | In French | → Diagnostics |
| UJP | Union des Jeunes pour le Progrès | In French | → Political parties and movements |
| UJRF | Union de la Jeunesse Républicaine de France | In French | → Political parties and movements |
| ULB | Université Libre de Bruxelles | In French | → Higher education, universities |
| ULP | Université Louis Pasteur | In French | → Higher education, universities |
| UM | Unité de Manutention | In French | |
| UMA | Union du Maghreb Arabe = SAM | Svaz arabského Maghrebu | In Czech = UMA | Unaniezh Maghrib Arab | In Breton = UMA | Unión del Magreb Árabe | In Spanish = AMU | Arabische Maghreb-Union | In German = UMA | Unione del Maghreb Arabo | In Italian = UMA | União do Maghreb Árabe | In Portuguese = САМ | Союз арабского Магриба | In Russian |
In French | → International relations |
| UMCPG | Union des Mutuelles des Cheminots et des Personnels du Groupe SNCF | In French | → Transport and postal services |
| UMGO | Union de la Maçonnerie et du Gros Oeuvre (www.umgo.ffbatiment.fr) | In French | → Organizations and associations → Building |
| UMP | Union pour un Mouvement Populaire | In French | → Political parties and movements |
| UMP | Union pour la Majorité Présidentielle | In French | → Political parties and movements |
| UMR | Unité Mixte de Recherche | In French | → Research policy |
| UMVF | Université Médicale Virtuelle Francophone | In French | → Higher education, universities → Medicine → Central administration |