| FEHRL | Forum of European national Highway Research Laboratories | In English | → Organizations and associations |
| FEPI | Fédération Européenne des Ports Intérieurs = EVB | Europäischer Verband der Binnenhäfen | In German = EFIP | European Federation of Inland Ports | In English |
In French | → Organizations and associations |
| FERSI | Forum of European Road Safety Research Institutes | In English | → Organizations and associations |
| FESCO | Far Eastern Shipping Company | In English | |
| FFEA | Franca Fervojista Esperanto-Asocio = AFCE | Association Française des Cheminots pour l'Espéranto | In French |
In Esperanto | → Associations → Rail transport engineering |
| FGP | Flussbauliches Gesamtprojekt | In German | → Building |
| FHWA | Federal Highway Administration (www.fhwa.dot.gov) | In English | → Central administration |
| FIA | Fédération Internationale Automobile | In French | → Organizations and associations → Automobile manufacturing |
| FIF | Fédération des Industries Ferroviaires | In French | → Organizations and associations → Rail transport engineering |
| FIM | Fédération Internationale Motocycliste | In French | → Organizations and associations |
| FIMO | Formation Initiale Minimale Obligatoire | In French | → Education |
| FMS | Fédération Motocycliste Suisse | In French | → Organizations and associations |
| FNAUT | Fédération Nationale des Associations d'Usagers des Transports | In French | → Organizations and associations |
| FNTR | Fédération Nationale des Transports Routiers | In French | → Organizations and associations |
| FNTV | Fédération Nationale des Transports de Voyageurs | In French | → Organizations and associations |
| FPPE | Filiale Peugeot Paris Entreprise | In French | → Vehicle engineering |
| FRA | Federal Railroad Administration (www.fra.dot.gov) | In English | → Central administration → Rail transport engineering |
| FSIR | Fonds Spécial d'Investissement Routier | In French | → Public finance → Civil engineering and land transport |
| FSV | Österreichische Forschungsgesellschaft Straße - Schiene - Verkehr | In German | → Civil engineering and land transport → Vehicle engineering |
| FTA | Federal Transit Administration (www.fta.dot.gov) | In English | → Central administration |
| FTW | Fort Worth Meacham International Airport | In English | |
| FVE | Flächendeckende Verkehrsdatenerfassung | In German | |
| GART | Groupement des Autorités Responsables de Transports | In French | → Organizations and associations → Public administration, government |
| GART | Groupement des Autorités Responsables des Transports | In French | → Organizations and associations |
| GDO | Grande Distribuzione Organizzata | In Italian | → Organizations and associations |
| GITT | Groupement des Industries du Transport et du Tourisme | In French | → Organizations and associations → Tourism |
| GLA | Global Logistics Associates (www.glanetwork.com) | In English | → Maintenance and logistics |
| GLT | Gestion Logistique et Transport | In French | → Maintenance and logistics |
| GPSPC | Government Postage Stamp Printer's Conference | In English | → Organizations and associations → Graphic industries, printing, publishing |
| GRETIA | Génie des Réseaux de Transport et Informatique Avancée | In French | → Computer science |
| GRRT | Groupement Régional Nord Pas-de-Calais pour la Recherche dans les Transports | In French | → Organizations and associations |
| GSV | Gesellschaft für Straßen- und Verkehrswesen | In German | → Organizations and associations → Civil engineering |
| GTF | Groupement des Transporteurs Français | In French | → Organizations and associations |
| GTFF | Group of Terrestrial Freight Forwarders | In English | → Organizations and associations |
| GTR | Groupe des Transporteurs Routiers | In French | → Organizations and associations |
| HCM | Highway Capacity Manual | In English | |
| HEACE | Health Effect of Aircraft Cabin Environment | In English | → Medicine → Aeronautics, aircraft |
| HEGEL | Histoire, Enjeux Globaux, Écomobilité Locale | In French | |
| IATA | International Air Transport Association | In English | → Associations |
| IATSS | International Association of Traffic and Safety Sciences | In English | → Associations |
| IAURIF | Institut d'Aménagement et d'Urbanisme de la Région Île-de-France | In French | → Regional planning |
| ICA | Ingénieur du Contrôle Aérien | In French | → Aeronautics, aircraft |
| ICADTS | International Council on Alcohol and Traffic Safety | In French | → Organizations and associations → Medicine |
| ICAO | International Civil Aviation Organization = IOCA | Internacia Organizo pri Civila Aviado | In Esperanto |
In English | → Organizations and associations → Aeronautics, aircraft |
| ICAOB | ICAO Bulletin (International Civil Aviation Organization) | In English | → Serial publications, periodicals → Aeronautics, aircraft |
| ICN | Inspectorate of Civil Navigation | In English | → Public administration, government |
| ICOS | Integrated Cargo Operating Software | In English | → Software |
| ICRAT | International Conference on Research in Air Transportation | In English | → Congresses |
| ICU | Intersection Capacity Utilization | In English | |
| IEA | Ingénieur de l’Électronique Aéronautique | In French | → Electronics → Aeronautics, aircraft |
| IEKA | Internacia Esperanto-Klubo Aŭtomobilista | In Esperanto | → Organizations and associations → Vehicle engineering |
| İETT | İstanbul Elektrik Tramvay ve Tünel | In Turkish | → Electrical engineering |
| IFEF | Internacia Fervojista Esperanto Federacio | In Esperanto | → Organizations and associations → Rail transport engineering |
| IMBA | Internationale Motorsport Bond voor Amateurs (www.imba-mx.com) | In Dutch | → Organizations and associations → Vehicle engineering |
| IMCO | Intergovernmental Maritime Consultative Organization | In English | → Organizations and associations → International relations → 6295 |
| INRETS | Institut National de Recherche sur les Transports et leur Sécurité | In French | → Research institutes → Vehicle engineering |
| INSERR | Institut National de Sécurité Routière et de Recherche | In French | |
| IOCA | Internacia Organizo pri Civila Aviado = ICAO (look above) |
In Esperanto | → International relations → Aeronautics, aircraft |
| IOT | Intervenção Operacional de Acessibilidade e Transportes | In Portuguese | |
| IPER | Institut Portuaire d'Études et de Recherche | In French | |
| IPTEA | Internacia Poŝtista kaj Telekomunikista Esperanto-Asocio | In Esperanto | → Associations → Telecommunications |
| IPTL | Institut Pédagogique Transport Logistique | In French | → Maintenance and logistics |
| IRCOBI | International Research COmmittee on Biokinetics of Impact | In French | |
| ISAT | Institut Spécialisé d'Aviation et de Tourisme (www.isat.ma) | In French | → Specialized or (poly)technical colleges → Tourism |
| ITB | Instituut voor het Transport langs de Binnenwateren = ITB | Institut pour le Transport par Batellerie | In French |
In Dutch | → 6295 |
| ITB | Institut pour le Transport par Batellerie = (look above) |
In French | → 6295 |
| ITS | Intelligent Transport System(s) | In English | |
| IVV | Ingenieurgesellschaft für Verkehrsplanung und Verkehrssicherung | In German | |
| IWT | Instituut voor Wegtransport | In Dutch | → Vehicle engineering |
| JAA | Joint Aviation Authorities | In English | → Aeronautics, aircraft |
| JARI | Japan Automobile Research Institute | In English | → Research institutes → Automobile manufacturing |
| JNav | Journal of Navigation | In English | → Serial publications, periodicals → Vehicle engineering |
| KfV | Kuratorium fur Verkehrssichereit | In German | → Organizations and associations |
| KLM | Koninklijke Luchtvaart Maatschappij (www.klm.com) | In Dutch | → Aeronautics, aircraft |
| LAB | Laboratoire d'Accidentologie et de Biomécanique | In French | → Research institutes → Traumatology |
| LARSOA | Local Authority Road Safety Organisation | In English | → Organizations and associations |
| LASER | Mouvement de Liaison des Associations de SÉcurité Routière | In French | → Organizations and associations |
| LAVIA | Limitateur s'Adaptant à la Vitesse Autorisée | In French | → Vehicle engineering |
| LCVR | Ligue Contre la Violence Routière | In French | → Organizations and associations |
| LET | Laboratoire d'Économie des Transports | In French | → Research institutes → Economics |
| LFT | Lufthansa Flight Training GmbH | In English | → Aeronautics, aircraft |
| LGV | Ligne à Grande Vitesse | In French | |
| LIER | Laboratoire d'essais INRETS Équipements Routiers | In French | → Research institutes → Civil engineering |
| LOTI | Loi d'Orientation des Transports Intérieurs | In French | → Politics |
| LSTE | Launch Site Transportation Equipment | In English | → Spaceflight engineering, astronautics |
| LTF | Lyon Turin Ferroviaire | In French | → Rail transport engineering |
| MAGALI | Moyens Aixois de Gestion des Automobiles par Localisation Informatique | In French | → Automobile manufacturing |
| MARAD | Maritime Administration (www.marad.dot.gov) | In English | → Central administration → 6295 |
| MARNIS | Maritime Navigation and Information Services | In English | → Marine research, oceanography |
| MELROSE | Mitsubishi Electric Road Traffic Simulation Environment | In English | → Computer simulation |
| MET | Ministère (wallon) de l'Équipement et des Transports | In French | → Central administration → Civil engineering |
| MFCF | Mutuelle Familiale des Cheminots de France | In French | |
| MGC | Mutuelle Générale des Cheminots | In French | |
| MIAT | Mongolyn Irgenii Agaaryn Teever = МИАТ | Монголын Иргэний Агаарын Тээвэр | In Mongolian |
In Mongolian | → Aeronautics, aircraft |
| MICSTRAN | Microscopic Simulator Model for Traffic Networks | In English | → Computer simulation |
| MITSIM | Microscopic Traffic Simulator | In English | → Computer simulation |
| MIVB | Maatschappij voor het Intercommunaal Vervoer te Brussel = STIB | Société des Transports Intercommunaux de Bruxelles | In French |
In Dutch | → Organizations and associations |
| MOCA | Modification des connaissances, attitudes et/ou comportements des usagers en faveur de la sécurité routière | In French | → Vehicle engineering |
| MOCF | Mutuelle de l'Orphelinat des Chemins de Fer Français | In French | |
| MPT | Ministry of Posts and Telecommunications | In English | → Organizations and associations → Telecommunications |
| MSIS | Modélisation, Simulation et Simulateurs de conduite | In French | |
| MT | Ministerul Transporturilor, Construcţiilor şi Turismului | In Romanian | → Central administration → Building → Tourism |
| MTA | Mobilité et Transports Avancés | In French | |
| MTC | Manual Traffic Control | In English | → Vehicle engineering |
| MTC | Mission and Traffic Control | In English | |
| MTI | Mission des Transports Intelligents | In French | |
| MTQ | Ministère des Transports du Québec | In French | → Central administration |
| MUST | Modélisation de l'Usage et de la Sécurité des Transports = MUST | Modelling the Use and Safety of Transport | In English |
In French | → Vehicle engineering |
| MUST | Modelling the Use and Safety of Transport = (look above) |
In English | → Vehicle engineering |
| NAP | Navigation Analysis Program | In English | → Vehicle engineering |
| NAVSAT | Navigation Satellite | In English | → Spaceflight engineering, astronautics |
| NHTSA | National Highway Traffic Safety Administration (www.nhtsa.dot.gov) | In English | → Central administration |
| NHTSA | National Highway Traffic Safety Association | In English | → Associations |
| NHWA | National Highway Administration | In English | → Central administration |
| NMBS | Nationale Maatschappij der Belgische Spoorwegen (www.b-rail.be) = SNCB | Société Nationale des Chemins de fer Belges | In French |
In Dutch | → Rail transport engineering |
| NRRv | Naval Research Reviews | In English | → Serial publications, periodicals → 6295 |
| NTH | NEA Transport Hogeschool | In Dutch | → Education |
| ÖAMTC | Österreichischer Automobil-, Motorrad- und Touring Club | In German | → Organizations and associations → Vehicle engineering |
| OCW | Opzoekingscentrum voor de Wegenbouw | In Dutch | |
| OEST | Observatoire Économique et Statistique des Transports | In French | → Statistics → Economics |
| ONCF | Office National des Chemins de Fer | In French | |
| ONISR | Observatoire National Interministériel de la Sécurité Routière | In French | → Central administration |
| ONT | Ontario International Airport | In English | |
| OST | Office of the Secretary of Transportation | In English | → Central administration |
| ÖVG | Österreichische Verkehrswissenschaftlichen Gesellschaft | In German | |
| ÖVN | Österreichischer Verein für Navigation = AIN | Austrian Institute of Navigation | In English |
In German | → Geodesy, cartography → Vehicle engineering |
| P&T | Post en Telegraaf | In Dutch | → Telecommunications |
| P&TE | Packaging and Transport Engineering | In English | |
| PAA | Pan American Airlines | In English | |
| PAH | Port Autonome du Havre | In French | |
| PAM | Port Autonome de Marseille (www.marseille-port.fr) | In French | |
| PATH | Partners for Advanced Transit and Higways | In English | → Organizations and associations |
| PCM | Plan Communal de Mobilité | In French | → Public administration, government → Regional planning |
| PDE | Plan de Déplacement d'Entreprise | In French | |
| PDU | Plan de Déplacements Urbains | In French | |
| PDUIF | Plan de Déplacements Urbains d'Ile-de-France | In French | → Public administration, government |
| PHST | Packaging, Handling, Storage, and Transportation | In English | → Maintenance and logistics |
| PHTR | Packaging, Handling, and Transportation Record | In English | → Maintenance and logistics |
| PLM | Paris Lyon Marseille | In French | |
| PLM | Paris Lyon Méditerranée | In French | |
| PNC | Personnel Navigant Commercial | In French | |
| PPTE | Periodica Polytechnica Transportation Engineering | In English | → Serial publications, periodicals → Vehicle engineering |
| PREDIT | Programme National de Recherche et d'Innovation dans les Transports Terrestres | In French | → Vehicle engineering |
| PRISCILLA | Bus PRiority strategies and Impact SCenarIos deveLoped on a Large urban Area | In English | |
| PROMU | Prospective de la Mobilité dans les Métropoles | In French | → Regional planning |
| PSMI | Pryde Schropp McComb, Inc (www.psmi.ca) | In English | → Civil engineering |
| PT | Post- og Teletilsynet | In Norwegian | → Telecommunications |
| PTT | Poŝto, Telegrafo kaj Telefono | In Esperanto | → Telecommunications |
| PTT | Post Telegraaf Telefoon | In Dutch | → Telecommunications |
| QANTAS | Queensland And Northern Territories Airline System | In English | |
| RATP | Régie Autonome des Transports Parisiens | In French | |
| RAVeL | Réseau Autonome des Voies Lentes | In French | |
| RDS-TMC | Radio Data System - Traffic Message Channel | In English | |
| RECIFE | REcherche sur la Capacité des Infrastructures FErroviaires | In French | → Rail transport engineering |
| RECITS | Recueil des Eléments de Connaissances Interdisciplinaires sur les Transports et leur Sécurité | In French | |
| REPOM | Réseau national de surveillance des ports maritimes | In French | |
| RESPECT | Route Empruntée en Sécurité par le Piéton Enfant Confronté au Trafic | In French | |
| RESSAC | Recherche Et Sauvetage par Système Autonome Coopérant | In English | |
| RET | Rotterdamse Electrische Tram | In Dutch | |
| RFF | Réseau Ferré de France (www.rff.fr) | In French | |
| RFI | Rete Ferroviaria Italiana | In Italian | → Rail transport engineering |
| RFTO | Renewable Transport Fuels Obligation | In English | |
| RGG | Réseau à Grand Gabarit | In French | |
| RIN | Royal Institute of Navigation | In English | → Geodesy, cartography → Vehicle engineering |
| RITA | Research and Innovative Technology Administration (www.rita.dot.gov) | In English | → Central administration → Research policy |
| RN | Route Nationale | In French | |
| RNA | Autoritatea Navală Română = RNA | Romanian Naval Authority | In English |
In Romanian | → Central administration |
| RoLa | Rollende Landstraße | In German | |
| RPC | Route Preemption Control | In English | |
| RT | Railway Telecommunications | In English | → Telecommunications |
| RTT | Revista Transporturilor şi Telecomunicaţiilor | In Romanian | → Serial publications, periodicals → Telecommunications |
| SAAF | Societatea de Administrare Active Feroviare | In Romanian | |
| SAAQ | Société de l'Assurance Automobile du Québec | In French | → Insurance → Automobile manufacturing |
| SABENA | Société Anonyme Belge d'Exploitation de la Navigation Aérienne | In French | |
| SADOVER | SAmenwerking op het gebied van de DOcumentatie over VERkeerswezen | In Dutch | → Libraries |
| SAPAR | Société Auto-Parc Agglomération Rennaise | In French | |
| SAPN | Société d'Autoroute Paris-Normandie | In French | |
| SAPRR | Société d'Autoroute Paris-Rhin-Rhône | In French | |
| SARI | Surveillance Automatisée des Routes pour l'Information des conducteurs et des gestionnaires | In French | |
| SARTRE | Social Attitudes to Road Traffic in Europe | In English | → Sociology |
| SCATS | Sydney Co-ordinated Adaptive Traffic System | In English | → Software |
| SDER | Schéma Directeur de l'Exploitation Routière | In French | |
| SEGUR | (Intégration de la) Sécurité routière dans la Gestion Urbaine | In French | → Regional planning |
| SERNAM | SERvice NAtional de Messageries | In French | |
| SETC | Société d'Exploitation des Transports Chazot | In French | |
| SETC | State Express Transport Corporation | In English | |
| SETRA | Service d'Études Techniques des Routes et Autoroutes | In French | → Civil engineering |
| SETRAL | SErvice des TRAnsports Lourds | In French | |
| SHIVA | Simulated Highways for Intelligent Vehicle Algorithms | In English | → Computer simulation |
| SIER | Service Interdépartemental d'Exploitation Routière | In French | → Public administration, government |
| SIFC | Southern Interior Flight Centre | In English | |
| SIMAP | Service des Industries Manufacturières et des Activité Postales | In French | |
| SIRA | Système d'Informations pour la Recherche en Accidentologie | In French | → Data |
| SIRIUS | Système d'Information pour un Réseau Intelligible aux Usagers | In French | |
| SISTM | Simulation of Strategies for Traffic on Motorways | In English | → Computer simulation |
| SIT | Système d'Information Trafic | In French | |
| SITA | Societatea Internaţională de Telecomunicaţii Aeronautice | In Romanian | → Telecommunications |
| SITI | Système Intelligent pour le Transport Intermodal urbain de voyageurs | In French | |
| SLSDC | Saint Lawrence Seaway Development Corporation (www.seaway.dot.gov) | In English | |
| SMF | Societatea de Servicii de Management Feroviar | In Romanian |