| Acronym | Sense | Language | Topics |
|---|---|---|---|
| OBV | Order Bossche Voetbalclub | In Dutch | → Organizations and associations → Football and rugby |
| OBVP | Österreichischer Bundesverband für Psychotherapie (www.psychotherapie.at) | In German | → Organizations and associations → Psychology → Neurology → Austria |
| OBW | Ooij's Blauw Wit | In Dutch | → Organizations and associations → Sport, physical exercises |
| OC | Oriens Christianus | In Latin | → Serial publications, periodicals → Christianity |
| OC | Organisme Comptable | In French | → Accounting |
| OCA | Orbiter Capability Analysis | In English | → Astronautics |
| OCA | Orbiter Capability Assessment | In English | → Astronautics |
| OCA | Oracle Certifiate Associate | In English | → Software → Data |
| OCA | Ouest Convoyeur et Automatisme | In French | → Mechanical engineering |
| OCA | Open Content Alliance | In English | → Organizations and associations → Computer science |
| OCA | Observatoire de la Côte d'Azur (https://www.oca.eu/fr/) | In French | → Observatories → France |
| OCA | Organisation Combat Anarchiste | In French | → Organizations and associations → Anarchist organizations |
| OCAC | Orbiter Cabin Air Cleaner | In English | → Astronautics |
| OCAH | Oficina de Coordinación de Asuntos Humanitarios | In Spanish | → International relations |
| OCALC | Oklahoma City Air Logistics Center | In English | → Maintenance and logistics → Aeronautics, aircraft → United States |
| OCAM | Optimal Control Applications and Methods | In English | → Serial publications, periodicals → Engineering, technology |
| OCAP | Ontario Coalition Against Poverty (www.ocap.ca) | In English | → Organizations and associations → Economics → Social welfare → Canada |
| OCAR | Office, Chief of Army Reserves | In English | → Military affairs |
| OCB | Operational Configuration Baseline | In English | |
| OCBC | Office Central de lutte contre le trafic des Biens Culturels | In French | → Police |
| OCC | Office of Contract Compliance | In English | → Contract law |
| OCC | Operations Control Center | In English | |
| OCC | Organisme Comptable de Centralisation | In French | → Accounting |
| OCC | Ordre Complémentaire pour le Chiffre | In French | → Military affairs |
| OCC | Obus à Charge Creuse | In French | → Military affairs |
| OCCAM | Ocean Circulation and Climate Advanced Modelling Project | In English | → Marine research, oceanography → Meteorology, climatology |
| OCCARO | Orange County Council of Amateur Radio Organizations | In English | → Organizations and associations → Telecommunications |
| OCCP | Orbit Command Computer Program | In English | → Computer programs → Astronautics |
| OCCS | Operator Control Console Subsystem | In English | |
| OCD | Obsessive Compulsive Disorder | In English | → Psychology → Neurology |
| OCD | Order of Discalced Carmelites | In English | → Roman catholic church |
| OCDE | Organisation de Coopération et de Développement Économique (www.oecd.org) = OECD | Organisation for Economic Cooperation and Development | In English = OCDE | Organizaţia de Cooperare şi Dezvoltare Economică | In Romanian = ΟΟΣΑ | Οργανισμός Οικονομικής Συνεργασίας και Ανάπτυξης | In Greek = OESO | Organisasie vir Ekonomiese Samewerking en Ontwikkeling | In Afrikaans = OCDE | Organització per a la Cooperació i el Desenvolupament Econòmic | In Catalan = ОИСР | Организация за икономическо сътрудничество и развитие | In Bulgarian = OECD | منظمة التعاون والتنمية الاقتصادية | In Arabic = OESO | Organisatie voor Economische Samenwerking en Ontwikkeling | In Dutch = OEKE | Organizaĵo pri Ekonomiaj Kunlaboro kaj Evoluigo | In Esperanto = OCDE | Organización para la Cooperación y el Desarrollo Económico | In Spanish = KHEE | Kooperazio eta Hazkunde Ekonomikorako Erakundea | In Basque = OCDE | Organisation de cooperation e de developament economic | In Interlingue = OECD | 경제 협력 개발 기구 | In Korean = OECD | 経済協力開発機構 | In Japanese = OCSE | Organizzazione per la Cooperazione e lo Sviluppo Economico | In Italian = OECD | 经济合作与发展组织 | In Chinese = OECD | Tổ chức Hợp tác và Phát triển Kinh tế | In Vietnamese = OECD | องค์การเพื่อความร่วมมือทางเศรษฐกิจและการพัฒนา | In Thai = ОЭСР | Организация экономического сотрудничества и развития | In Russian = OCDE | Organização para a Cooperação e Desenvolvimento Económico | In Portuguese |
In French | → International relations → International economic cooperation |
| OCDE | Organizaţia de Cooperare şi Dezvoltare Economică (www.oecd.org) = OECD, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Romanian | → International relations → International economic cooperation |
| OCDE | Organització per a la Cooperació i el Desenvolupament Econòmic (www.oecd.org) = OECD, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Catalan | → International relations → International economic cooperation |
| OCDE | Organización para la Cooperación y el Desarrollo Económico (www.oecd.org) = OECD, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Spanish | → International relations → International economic cooperation |
| OCDE | Organisation de cooperation e de developament economic (www.oecd.org) = OECD, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Interlingue | → International relations → International economic cooperation |
| OCDE | Organização para a Cooperação e Desenvolvimento Económico (www.oecd.org) = OECD, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Portuguese | → International relations → International economic cooperation |
| OCDPC | Office pour le Contrôle des Drogues et la Prévention du Crime = ODCCP | Office for Drug Control and Crime Prevention | In English |
In French | → United Nations → Criminal law |
| OCDR | Orbiter Critical Design Review | In English | → Astronautics |
| OCDU | Optics Coupling Data Unit | In English | → Data → Optics |
| OCDU | Outpatient Clinical Decision Unit | In English | → Medicine → 61608 |
| OCDU | Optical Channel Drop Unit | In English | → Telecommunications → Optics |
| OCDU | Otor-Owhe Community Development Union | In English | → Organizations and associations → Regional planning |
| OCDU | Oleh Community Development Union | In English | → Organizations and associations → Regional planning |
| OcDyn | Ocean Dynamics | In English | → Serial publications, periodicals → Marine research, oceanography |
| OCE | Ocean Color Experiment | In English | → Marine research, oceanography |
| OCE | Organizational Clothing and Equipment | In English | |
| OCEAN | Organisation Centralisée pour l'Exploitation de l'Administration des services Lotus Notes | In French | → Software |
| OCEE | Organització per a la Cooperació Econòmica Europea = OECE | Organisation Européenne de Coopération Économique | In French = OEES | Organisasie vir Europese Ekonomiese Samewerking | In Afrikaans = ΟΕΟΣ | Οργανισμός Ευρωπαϊκής Οικονομικής Συνεργασίας | In Greek = OEEC | Organisation for European Economic Co-operation | In English = OECE | Organizzazione Europea per la Cooperazione Economica | In Italian = OCEE | Organizaţia pentru Cooperare Economică Europeană | In Romanian = OECE | Organização para a Cooperação Económica Europeia | In Portuguese |
In Catalan | → International relations → International economic cooperation |
| OCEE | Organizaţia pentru Cooperare Economică Europeană = OECE, OEES, ΟΕΟΣ, OEEC (look above) |
In Romanian | → International relations → International economic cooperation |
| OcEng | Ocean Engineering | In English | → Serial publications, periodicals → Marine research, oceanography → 6295 |
| OCF | On-Board Computational Facility | In English | → Computer science |
| OCF | Orbiter Computational Facilities | In English | → Computer hardware → Astronautics |
| OCG | OSTC (Open Systems Testing Consortium) Certification Group | In English | |
| OCG | Operational Co-ordination Group | In English | |
| ÖCG | Österreichische Computer Gesellschaft (www.ocg.at) | In German | → Organizations and associations → Computer science → Austria |
| OCG | Organe de Coupure Général | In French | → Energy economics → Electrical engineering |
| OCGF | Organic Crystal Growth Facility | In English | |
| OCH | Orbiter Common Hardware | In English | → Computer hardware → Astronautics |
| OCHA | Office for the Coordination of Humanitarian Affairs (http://ochaonline.un.org) | In English | → United Nations |
| ÖCI | Österreichisches Controller-Institut (www.oeci.at) | In German | → Austria |
| OCI | Organizational Conflict of Interest | In English | |
| OCI | Officier Communication et Information | In French | → Military affairs |
| OCI | Officier Communication Information | In French | → Military affairs |
| OCIM | Office de Coopération et d'Information Muséographiques | In French | → Museums |
| OCIPED | Omani Centre for Investment Promotion & Export Development | In English | → 33972 |
| OCL | Organisation Communiste Libertaire | In French | → Communist parties → Anarchist organizations |
| OCLC | Online Computer Library Center | In English | → Libraries → Networks, communication |
| OCM | Optical Countermeasure | In English | |
| OCM | Oracle Certified Master | In English | → Software → Data |
| OCM | Organisation Civile et Militaire | In French | → Organizations and associations → History |
| OCM | Organisations Communes des Marchés | In French | → Organizations and associations → Economics |
| OCML | Operational Conceptual Modelling Language | In English | → Programming languages |
| OcMod | Ocean Modelling | In English | → Serial publications, periodicals → Marine research, oceanography |
| OCMW | Openbaar Centrum voor Maatschappelijk Welzijn | In Dutch | |
| OCN | Operation Control Number | In English | |
| OCN | Order Change Number | In English | |
| OCN | Order Control Number | In English | |
| OCN | Organización Contrasubversiva Nacional | In Spanish | → Central administration → Spain |
| OCOGs | Organising Committees for the Olympic Games | In English | → Organizations and associations → Sport, physical exercises |
| OCONUS | Outside Continental United States | In English | → United States |
| OCOT | Ogólnopolskie Centrum Obsługi Tłumaczy | In Polish | → Poland |
| OCP | Omega Compiled Process | In English | |
| OCP | Office Of Commercial Programs | In English | → Trade |
| OCP | Operations Checkout Procedure | In English | |
| OCP | Output Control Pulse | In English | |
| OCP | Office Chérifien des Phosphates = م ش ف | مجموعة المكتب الشريف للفوسفاط | In Arabic |
In French | → Mining → Chemical technology |
| OCP | Oracle Certified Professional | In English | → Software → Data |
| OCP | Opération Conduite Préventive | In French | |
| OcPhE | Ocean Physics and Engineering | In English | → Serial publications, periodicals → Marine research, oceanography → 6295 |
| OCQ | Ordre des Chimistes du Québec | In French | → Organizations and associations → Chemistry → Chemical technology → Canada |
| OCQ | Ordre des Chiropraticiens du Québec | In French | → Organizations and associations → Occult sciences → Canada |
| OCR | Operational Capability Readiness | In English | |
| OCR | Operational Concept Review | In English | |
| OCR | Optical Character Reader | In English | → Writing systems → Computer-based techniques |
| OCRACES | Orange County Radio Amateur Civil Emergency Service | In English | → Telecommunications |
| OCRB | Office Central pour la Répression du Banditisme | In French | → Police |
| OCRD | Opérateur Commun du Réseau de Distribution | In French | → Energy economics → Electrical engineering |
| OCRETH | Office Central pour la Répression de la Traite des Êtres Humains | In French | → Police → Slavery |
| OCRFM | Office Central pour la Répression du Faux Monnayage | In French | → Police |
| OCRGDF | Office Central pour la Répression de la Grande Délinquance Financière | In French | → Police → Finance |
| OCRP | Officier Chargé des Relations Publiques | In French | → Military affairs |
| OCRTAEMS | Office Central pour la Répression du Trafic des Armes, des munitions, des produits Explosifs et des Matières Sensibles | In French | → Police → Military engineering |
| OCRTIS | Office Central pour la Répression du Trafic Illicite des Stupéfiants | In French | → Police |
| OCRVP | Office Central pour la Répression des Violences aux Personnes | In French | → Police → Criminal law → France |
| OCS | On-Board Checkout System | In English | |
| OCS | Operational Control Segment | In English | |
| OCS | Olympic Club de Safi (www.ocs.ma) | In French | → Organizations and associations → Football and rugby → Morocco |
| OCS | Officer Candidate School | In English | → Specialized or polytechnical colleges → Military affairs |
| OcSci | Ocean Science | In English | → Serial publications, periodicals → Marine research, oceanography |
| OCSE | Organizzazione per la Cooperazione e lo Sviluppo Economico (www.oecd.org) = OCDE, OECD, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, ОЭСР (look above) |
In Italian | → International relations → International economic cooperation |
| OCT | Ordre Complémentaire de Transmission | In French | → Telecommunications |
| OCT | Ordre Complémentaire pour les Transmissions | In French | → Military affairs → Telecommunications |
| OCTAVE | Operationally Critical Threat, and Vulnerability Evaluation | In English | → Computer science |
| OCTS | Ocean Color and Temperature Scanner | In English | → Marine research, oceanography → Meteorology, climatology |
| OCTW | Optical Communications Through the shuttle Window | In English | → Astronautics |
| OCU | Ordnance Control Unit | In English | |
| OCVV | Oficina Comunitària de Varietats Vegetals (www.cpvo.europa.eu) = CPVO | Community Plant Variety Office | In English = OCVV | Office Communautaire des Variétés Végétales | In French |
In Catalan | → European Union → Industrial property → Agricultural sciences → Europe |
| OCVV | Office Communautaire des Variétés Végétales (www.cpvo.europa.eu) = CPVO (look above) |
In French | → European Union → Industrial property → Agricultural sciences → Europe |
| OCW | Opzoekingscentrum voor de Wegenbouw | In Dutch | → Transport and postal services |
| ODA | Open Document Architecture | In English | → Computer science |
| ODA | Optical Diagnostic Assembly | In English | |
| ODB | Operational Data Base | In English | → Data |
| ODB | Operational Data Book | In English | |
| ODB | Ons Doel Bereikt | In Dutch | → Organizations and associations → Sport, physical exercises |
| ODBC | Open Data Base Connectivity | In English | → Data |
| ODBC | Open Database Connectivity | In French | → Software → Data |
| ODBMS | Object-Oriented Database Management System | In English | → Data |
| ODC | Overwinning Door Combinatie | In Dutch | → Organizations and associations → Sport, physical exercises |
| ODCCP | Office for Drug Control and Crime Prevention = OCDPC (look above) |
In English | → United Nations → Criminal law |
| ODDDA | OWTRAD (Old World Traditional Trade Routes) Dromographic Digital Data Archives | In English | → Libraries → History |
| ODDL | On-Board Digital Data Load | In English | → Data |
| ODDP | Object-Dependent Data Processor | In English | → Computer hardware → Data |
| ODDS | Operational Data Delivery Services | In English | |
| ODE | Operational Demonstration and Evaluation | In English | |
| ODE | Ordinary Differential Equation | In English | → Differential calculus |
| ODE | Open Dynamics Engine (www.ode.org) | In English | → Software → Image processing → Computer simulation |
| ODE | Observatoire du Devenir des Étudiants | In French | → Higher education, universities |
| ODE | Orchestration Director Engine | In English | → Software |
| ODE | Observatoire Départemental de l'Eau | In French | → Regional administration → Hydrology → Environmental technology, water supply, waste management |
| ODE | Overwinnen Door Eendracht | In Dutch | → Organizations and associations → Sport, physical exercises |
| ODE | Occasion d'Entendre | In French | → Advertising |
| ODES | Optical Discrimination Evaluation Study | In English | |
| ODF | Open Document Format | In English | → Data → Document processing |
| ODF | Orbit Determination Facility | In English | → Astronomy → Astronautics |
| ODF | Output Data Formatter | In English | → Software → Data |
| ÖDG | Österreichische Diabetes-Gesellschaft (www.oedg.org) | In German | → Organizations and associations → Physiology → Pathology → Austria |
| ODI | Ontspanning Door Inspanning | In Dutch | → Organizations and associations → Sport, physical exercises |
| ODICE | Outil de Diagnostic Interne Comptable de l'Éducation Nationale | In French | → Accounting → Central administration → Education |
| ODIN | Orbital Design Integration System | In English | → Astronautics |
| ODIN | Ons Doel Is Nuttig | In Dutch | → Organizations and associations → Sport, physical exercises |
| ODIO | Ons Doel Is Overwinnen | In Dutch | → Organizations and associations → Sport, physical exercises |
| ODIT | Observation, Développement et Ingénierie Touristique | In French | → Tourism |
| ODIZ | Ons Doel Is Zegevieren | In Dutch | → Organizations and associations → Sport, physical exercises |
| ODL | Open Distance Learning | In English | → 374 |
| ODM | Orbiter Disconnect Mechanism | In English | → Astronautics |
| ODM | Objetivos de Desarrollo del Milenio = OMD | Objectifs du Millénaire pour le Développement | In French = MDG | Millennium Development Goals | In German = OSM | Obiettivi di Sviluppo del Millennio | In Italian = TPM | Tujuan Pembangunan Milenium | In Indonesian = MDM | Metas de Desenvolvimento do Milênio | In Portuguese |
In Spanish | → United Nations → Development |
| ODMG | Object Database Management Group | In English | → Organizations and associations → Data |
| ODO | Overwinnen Door Oefening | In Dutch | → Organizations and associations → Sport, physical exercises |
| ODO | Oefening Doet Overwinnen | In Dutch | → Organizations and associations → Sport, physical exercises |
| ÖDOZA | Österreichisches Dokumentationszentrum für Auslandsstudien | In German | → Documentation → Education → Austria |
| ODP | Open Distributed Processing | In English | |
| ODP | Ocean Drilling Programm | In English | → Marine research, oceanography |
| ODP | Operational Display Procedure | In English | |
| ODP | Orderly Departure Programme = PDO | Programme de Départs Organisés | In French |
In English | → Migrations |
| ODPM | Office of Deputy Prime Minister | In English | → Central administration |
| ODR | Output Data Redundancy | In English | → Data |
| ODRAN | Operational Drawing Revision Advance Notice | In English | |
| ODRC | Orbiter Data Reduction Center | In English | → Data → Astronautics |
| ODS | Oefening Doet Slagen | In Dutch | → Organizations and associations → Sport, physical exercises |
| ODS | Office of Disability Services | In English | |
| ODSEF | Observatoire Démographique et Statistique de l'Espace Francophone | In French | → Organizations and associations → Demography → Statistics |
| ODU | Output Display Unit | In English | → Human-computer interaction |
| ODUPA | Organización de Deporte Universitario Panamericano | In Spanish | → Organizations and associations → Higher education, universities → Sport, physical exercises |
| ODV | Ontspanning Door Voetbal | In Dutch | → Organizations and associations → Football and rugby |
| ODV | Occasion De Voir | In French | → Advertising |
| OEA | Oxford Encyclopedia of Archaeology in the Near East | In English | → Encyclopaedias, reference works → Archeology |
| OEA | Ouvrier d'Entretien et d'Accueil | In French | → Labour, labour economics |
| OEAS | Orbital Emergency Arresting System | In English | → Astronautics |
| OeAV | Österreichischer Alpenverein (www.alpenverein.at) | In German | → Organizations and associations → Austria |
| OEB | Office Européen des Brevets (www.epo.org) = EPO | European Patent Office | In English = OEP | Oficina Europea de Patentes | In Spanish = EOB | Europees Octrooibureau | In Dutch = IEP | Instituto Europeu de Patentes | In Portuguese = EAP | Europäisches Patentamt | In German |
In French | → International economic cooperation → Industrial property |
| OEB | Ordre d'Exécution de Branchement | In French | → Energy economics → Electrical engineering |
| OEC | Olfactory Ensheathing Cell | In English | → Anatomy |
| OECD | Organisation for Economic Cooperation and Development (www.oecd.org) = OCDE, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In English | → International relations → International economic cooperation |
| OECD | منظمة التعاون والتنمية الاقتصادية (www.oecd.org) = OCDE, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Arabic | → International relations → International economic cooperation |
| OECD | 경제 협력 개발 기구 (www.oecd.org) = OCDE, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Korean | → International relations → International economic cooperation |
| OECD | 経済協力開発機構 (www.oecd.org) = OCDE, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Japanese | → International relations → International economic cooperation |
| OECD | 经济合作与发展组织 (www.oecd.org) = OCDE, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Chinese | → International relations → International economic cooperation |
| OECD | Tổ chức Hợp tác và Phát triển Kinh tế (www.oecd.org) = OCDE, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Vietnamese | → International relations → International economic cooperation |
| OECD | องค์การเพื่อความร่วมมือทางเศรษฐกิจและการพัฒนา (www.oecd.org) = OCDE, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Thai | → International relations → International economic cooperation |
| OECE | Organisation Européenne de Coopération Économique = OCEE, OEES, ΟΕΟΣ, OEEC (look above) |
In French | → International relations → International economic cooperation |
| OECE | Organizzazione Europea per la Cooperazione Economica = OCEE, OEES, ΟΕΟΣ, OEEC (look above) |
In Italian | → International relations → International economic cooperation |
| OECE | Organização para a Cooperação Económica Europeia = OCEE, OEES, ΟΕΟΣ, OEEC (look above) |
In Portuguese | → International relations → International economic cooperation |
| OECI | Organization of European Cancer Institutes (http://https://oeci.eu/) | In English | → Organizations and associations → Research institutes → Oncology → Europe |
| OECO | Outboard Engine Cutoff | In English | → Vehicle engineering |
| OECS | Orbital Express Capture System | In English | → Astronautics |
| OECS | Organisation of Eastern Caribbean States (www.oecs.org) | In English | → International relations |
| OED | Oxford English Dictionary | In English | → Dictionaries → Linguistics |
| OEEC | Organisation for European Economic Co-operation = OCEE, OECE, OEES, ΟΕΟΣ (look above) |
In English | → International relations → International economic cooperation |
| OEES | Organisasie vir Europese Ekonomiese Samewerking = OCEE, OECE, ΟΕΟΣ, OEEC (look above) |
In Afrikaans | → International relations → International economic cooperation |