| Acronym | Sense | Language | Topics |
|---|---|---|---|
| OHF | Occupational Health Facility | In English | → Medicine |
| OIT | Organisation Internationale du Travail = ILO | International Labour Organization | In English = ILO | Internacia Labor-Organizo | In Esperanto |
In French | → United Nations |
| OJT | On-the-Job Training | In English | → Education |
| ONISEP | Office National d'Information Sur les Enseignements et les Professions | In French | → Education |
| OPEIU | Office and Professional Employees International Union | In English | → Organizations and associations |
| OPPBTP | Organisme Professionnel de Prévention du Bâtiment et des Travaux Publics (www.oppbtp.fr) | In French | → Organizations and associations → Medicine → Civil engineering → Construction |
| ORP | Optional Retirement Program | In English | |
| OSHA | Occupational Safety and Health Act | In English | → Medicine |
| OSHA | Occupational Safety and Health Administration (www.osha.gov) | In English | → Central administration → Medicine → Nature and society |
| OT | Occupational Therapy | In English | → Medicine |
| PACE | Personal Achievement through Competency Evaluation | In English | → Personnel management |
| PAIO | Permanence d'Accueil, d'Information et d'Orientation | In French | → Education |
| PAP | Personnel Assurance Program | In English | → Insurance |
| PAP-ND | Projet d'Action Personnalisée – Nouveau Départ | In French | |
| PARE-PAP | Plan d'Aide à la Recherche d'Emploi - Projet d'Action Personnalisée | In French | |
| PERB | Public Employment Relations Board | In English | → Organizations and associations → Personnel management |
| PES | Public Employment Service | In English | → Public administration, government |
| PI&A | Personnel Identification and Authentication | In English | → 00495 |
| PIDE | Personnes Inscrites comme Demandeurs d’Emploi | In French | |
| PIN | Personal Identification Number | In English | → Personnel management |
| PIP | Personnel Incentive Program | In English | → Personnel management |
| PNK | Personalnebenkosten | In German | → Accounting |
| PRDFP | Plan Régional de Développement des Formations Professionnelles des jeunes et des adultes | In French | → Education |
| PSIP | Public Service Internship Program | In English | → Public administration, government |
| PSQ | Personnel Security Questionnaire | In English | |
| PSS | Professional Staff Senate | In English | |
| PT | Palvelutyönantajat | In Finnish | → Organizations and associations → 33846 |
| PUMSUD | Pour Un Mouvement Syndical Uni et Démocratique | In French | → Organizations and associations |
| PVA | Psychische Vermoeidheid in de Arbeidssituatie | In Dutch | → Psychology |
| QfB | Qualifizierungsförderung für Beschäftigte | In German | → Education |
| RETL | Reeducation Through Labor | In English | → Education |
| RPPST | Réseau pour la Prévention et le Progrès en Santé au Travail - Île-de-France | In French | → Medicine |
| RRSP | Registered Retirement Savings Plan | In English | → Finance |
| RTT | Réduction du Temps de Travail | In French | |
| SACO | Sveriges Akademikers Centralorganisation | In Swedish | → Organizations and associations |
| SAF | Svenska Arbetsgivareföreningen | In Swedish | → Organizations and associations |
| SAK | Suomen ammattiliittojen keskusjärjestö | In Finnish | → Organizations and associations |
| SAPO | société Anonyme à Participation Ouvrière | In French | → Economics |
| SARP | Shuttle Astronaut Recruitment Program | In English | → Spaceflight engineering, astronautics |
| SBO | Sectorbestuur Onderwijsarbeidsmarkt | In Dutch | |
| SCHOLAR | Scholing, arbeidsmarkt en economische ontwikkeling | In Dutch | → Education |
| SCOP | Société Coopérative Ouvrière de Production | In French | |
| SCUIO | Service Commun Universitaire d'Information et d'Orientation | In French | → Higher education, universities |
| SEGPA | Section d'Enseignement Général et Professionnel Adapté | In French | → Education |
| SEPRO | Société d'Exploitation des Plateformes de Recrutement et d'Orientation | In French | → Education |
| SER | Service Employment Redevelopment | In English | |
| SESMAT | Santé Et Satisfaction des Médecins Au Travail | In French | → Medicine |
| SEST | Santé-Environnement et Santé-Travail | In French | → Research policy → Medicine |
| SETC | State Employment and Training Commission | In English | |
| SETC | State Employees Trades Council | In English | → Public administration, government |
| SEUL | Syndicat des Employés de l’Université Laurentienne = LUSU | Laurentian University Staff Union | In English |
In French | → Organizations and associations → Higher education, universities |
| SFF | Sammenslutningen af Firma-Funktionærer | In Danish | → Organizations and associations |
| SGEN | Syndicat Général de l'Éducation Nationale | In French | → Organizations and associations → Education |
| SGILWH | Study Group on International Labor and Working-Class History | In English | → 93032 |
| SGTIF | Syndicat Général des Travailleurs de l'Industrie du Film (http://sgtif.fnsac-cgt.com) | In French | → Organizations and associations → Cinema, movies |
| SICT | Syndicat des Ingénieurs, Cadres, Techniciens | In French | → Organizations and associations |
| SICTAM | Syndicat des Ingénieurs, Cadres, Techniciens et Agents de Maîtrise | In French | → Organizations and associations |
| SIE | Stage d’Insertion en Entreprise | In French | |
| SIRH | Systèmes d'Information Ressources Humaines | In French | → Personnel management |
| SLEP | Sick Leave Exchange Program | In English | → Personnel management |
| SMIC | Salaire Minimum Interprofessionnel de Croissance | In French | |
| SMIG | Salaire Minimum Interprofessionnel Garanti | In French | |
| SNC | Solidarités Nouvelles face au Chômage | In French | → Organizations and associations |
| SNCAMTC | Syndicat National des Cadres, Agents de Maîtrise et Techniciens de la Cinématographie | In French | → Organizations and associations → Cinema, movies |
| SNEPS | Syndicat National des Entreprises de Portage Salarial | In French | → Organizations and associations |
| SNESUP | Syndicat National de l'Enseignement Supérieur | In French | → Education |
| SNI | Syndicat Neutre pour Indépendants | In French | → Organizations and associations |
| SNTPCT | Syndicat National des Techniciens et Travailleurs de la Production Cinématographique et de la Télévision (www.sntpct.fr) | In French | → Organizations and associations → Cinema, movies → Telecommunications |
| SPNDE | Service Personnalisé pour un Nouveau Départ vers l'Emploi | In French | |
| SRP | Stage de Réinsertion Professionnelle | In French | |
| ST | Sponsored Training | In English | → Education |
| STIB | Société des Travailleurs Ignorés Bruxellois | In French | → Organizations and associations |
| STO | Service du Travail Obligatoire | In French | → History |
| STTK | Suomen Teknisten Toimihenkilöjärjestöjen Keskusliitto | In Finnish | → Organizations and associations |
| STV | Solidaridad de Trabajadores Vascos = ELA | Euzko Langilleen Alkartasuna | In Basque |
In Spanish | → Organizations and associations |
| SUAOIP | Service Universitaire d'Accueil, d'Orientation et d'Insertion Professionnelle | In French | → Higher education, universities |
| SUEPO | Staff Union of the European Patent Office (www.suepo.org) | In English | → Organizations and associations → Industrial property |
| SUI | State Unemployment Insurance | In English | → Insurance |
| SWOB | Salaries, Wages, Overhead, and Benefits | In English | → Accounting |
| TCO | Tjänstemännens Centralorganisation | In Swedish | → Organizations and associations |
| TCRS | Training and Certification Records System | In English | → Education |
| TE | Travail Étranger | In French | → Organizations and associations → History |
| TKD | ABVV Textiel, Kleding en Diamant | In Dutch | → Organizations and associations → Textile industry |
| TPR | Training Personnel Requirement | In English | → Education |
| TRS | Teachers Retirement System | In English | → Education |
| TU | Toimihenkilöunioni | In Finnish | → Organizations and associations |
| TUC | Trades Union Congress | In English | → Organizations and associations |
| TWU | Transportation Workers Union of America | In English | → Organizations and associations → Transport and postal services |
| UAW | United Auto Workers | In English | → Organizations and associations → Automobile manufacturing |
| UCM | Union de Classes Moyennes | In French | → Organizations and associations |
| UCW | Understanding Children's Work and its Impact | In English | → Organizations and associations → Fundamental rights |
| UEP | Unité d'Experience Professionnelle | In French | |
| UETP | University Enterprise Training Partnership | In English | → Higher education, universities |
| UGT | Unión General de Trabajadores | In Spanish | → Organizations and associations |
| UGT | União Geral de Trabalhadores | In Portuguese | → Organizations and associations |
| UIL | Unione Italiana del Lavoro (www.uil.it) | In Italian | → Organizations and associations |
| UKIPG | United Kingdom Interprofessional Group | In English | → Organizations and associations |
| ULA | Union der Leitenden Angestellten | In German | → Organizations and associations |
| UNEDIC | Union Nationale interprofessionnelle pour l'Emploi dans l'Industrie et le Commerce | In French | → Organizations and associations → Industry, industrial policy → Trade |
| UNICE | Union of Industrial and Employers' Confederations of Europe | In English | → Organizations and associations |
| UNICE | Union des Confédérations de l’Industrie et des Employeurs d’Europe | In French | → Organizations and associations → Industry, industrial policy |
| UNPR | Uniunea Naţională a Patronatului Român | In Romanian | → Organizations and associations |
| UNSA | Union Nationale des Syndicats Autonomes | In French | |
| UNTA | União Nacional dos Trabalhadores Angolanos | In Portuguese | → Organizations and associations |
| UPCP | Unión del Personal Civil de la Provincia | In Spanish | → Organizations and associations → Regional administration |
| UPCP | Union du Personnel du Corps de Police | In French | → Police |
| UPGWA | United Plant Guard Workers of America | In English | → Organizations and associations |
| USGERES | Union de Syndicats et Groupements d'Employeurs Représentatifs dans l'Économie Sociale | In French | → Organizations and associations |
| USO | Unión Sindical Obrera | In Spanish | → Organizations and associations |
| USSPI | Unione Sindacati Professionalisti Pubblico - Privato Impiego | In Italian | → Organizations and associations |
| USWA | United Steelworkers of America | In English | → Organizations and associations → Metallurgy |
| UTA | Unité de Travail Annuel | In French | |
| VAE | Validation des Acquis et de l'Expérience | In French | → Education |
| VHP | Vakorganisatie van het Middelbaar en Hoger Personeel | In Dutch | → Organizations and associations |
| VIA | Volontaire/Volontariat International en Administration | In French | → Public administration, government |
| VIE | Volontaire/Volontariat International en Entreprise | In French | |
| VSNE | Volontariat du Service National à l'Étranger | In French | → Public administration, government |
| VTML | Valtion työmarkkinalaitos | In Finnish | → Public administration, government |
| VvL | Vakuutusväen liitto | In Finnish | → Organizations and associations → Insurance |
| WAFF | Wiener ArbeitnehmerInnen Förderungsfonds | In German | |
| WD | Workday | In English | |
| ZAV | Zentralstelle für Arbeitsvermittlung | In German | |
| ΑΔΕΔΥ | Ανώτατη Διοίκηση Ενώσεων Δημοσίων Υπαλλήλων | In Greek | → Organizations and associations → Public administration, government |
| ΓΣΕΕ | Γενική Συλλογική Σύμβαση Εργασίας | In Greek | → Organizations and associations |
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