| OCDE | Organización para la Cooperación y el Desarrollo Económico (www.oecd.org) = OECD | Organisation for Economic Cooperation and Development | In English = OCDE | Organisation de Coopération et de Développement Économique | In French = 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 = 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 Spanish | → 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 | 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 | Organisation de Coopération et de Développement Économique (www.oecd.org) = OECD, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In French | → International relations → International economic cooperation |
| 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 |
| OCL | Organisation Communiste Libertaire | In French | → Political parties and movements |
| OCRETH | Office Central pour la Répression de la Traite des Êtres Humains | In French | → Police → Slavery |
| 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 |
| 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 | 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 | 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 | องค์การเพื่อความร่วมมือทางเศรษฐกิจและการพัฒนา (www.oecd.org) = OCDE, ΟΟΣΑ, OESO, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Thai | → International relations → International economic cooperation |
| 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 |
| OECE | Organizzazione Europea per la Cooperazione Economica = OCEE, OEES, ΟΕΟΣ, OEEC (look above) |
In Italian | → 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 | Organização para a Cooperação Económica Europeia = OCEE, OEES, ΟΕΟΣ, OEEC (look above) |
In Portuguese | → International relations → International economic cooperation |
| 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 |
| OEKE | Organizaĵo pri Ekonomiaj Kunlaboro kaj Evoluigo (www.oecd.org) = OCDE, OECD, ΟΟΣΑ, OESO, ОИСР, KHEE, OCSE, ОЭСР (look above) |
In Esperanto | → International relations → International economic cooperation |
| OESO | Organisatie voor Economische Samenwerking en Ontwikkeling (www.oecd.org) = OCDE, OECD, ΟΟΣΑ, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Dutch | → International relations → International economic cooperation |
| OESO | Organisasie vir Ekonomiese Samewerking en Ontwikkeling (www.oecd.org) = OCDE, OECD, ΟΟΣΑ, ОИСР, OEKE, KHEE, OCSE, ОЭСР (look above) |
In Afrikaans | → International relations → International economic cooperation |
| OEZA | Österreichische Entwicklungs- und Ostzusammenarbeit | In German | → International relations |
| OFAJ | Office Franco-Allemand pour la Jeunesse | In French | → Organizations and associations → International relations |
| ÖFV | Österreichisch-Französische Vereinigung (www.oefv.org) | In German | → Organizations and associations → International relations |
| OGE | Observer Group Egypt | In English | → United Nations → Polemology |
| OGG | Observer Group Golan | In English | → United Nations → Polemology |
| OGG-D | Observer Group Golan - Damascus | In English | → United Nations → Polemology |
| OGG-T | Observer Group Golan - Tiberias | In English | → United Nations → Polemology |
| OGL | Observer Group Libanon | In English | → United Nations → Polemology |
| OIA | Office of International Affairs | In English | → International relations |
| OIAC | Organisation pour l'Interdiction des Armes Chimiques (www.opcw.org) = OPWC | Organisation for the Prohibition of Chemical Weapons | In English |
In French | → Organizations and associations → International relations → Military engineering |
| OIC | Organization of the Islamic Conference | In English | → Organizations and associations → Islam → International relations |
| OIEA | Organismo Internacional de Energía Atómica (www.iaea.org) = IAAE | Internacia Agentejo pri Atom-Energio | In Esperanto = IAEA | International Atomic Energy Agency | In English = AIEA | Agence Internationale de l'Énergie Atomique | In French = AIEA | Agenţia Internaţională pentru Energie Atomică | In Romanian = МААЕ | Международна агенция за атомна енергия | In Bulgarian = AIEA | Agència Internacional de l'Energia Atòmica | In Catalan = MAAE | Mezinárodní agentura pro atomovou energii | In Czech = IAEA | Det Internationale Atomenergiagentur | In Danish = IAEO | Internationale Atomenergieorganisation | In German = סבא"א | הסוכנות הבינלאומית לאנרגיה אטומית | In Hebrew = IAEA | International Atomenergie Agence | In Letzeburgesh = AIEA | Agenzia Internazionale per l'Energia Atomica | In Italian = IAEA | अंतर्राष्ट्रीय परमाणु ऊर्जा अधिकरण | In Hindi = MAAE | Меѓународна агенција за атомска енергија | In Macedonian = МАГАТЭ | Международное агентство по атомной энергии | In Russian = AIEA | Agência Internacional de Energia Atómica | In Portuguese = MAEA | Międzynarodowa Agencja Energii Atomowej | In Polish = МАГАТЕ | Міжнародне агентство з атомної енергії | In Ukrainian = UAEA | Uluslararası Atom Enerji Ajansı | In Turkish = IAEA | สำนักงานพลังงานปรมาณูระหว่างประเทศ | In Thai = EANA | Energia Atomikoaren Nazioarteko Agentzia | In Basque |
In Spanish | → International relations → Energy economics → Nuclear technology |
| OIN | Opération d'Intérêt National | In French | → Regional planning |
| OIPC | Organisation Internationale de Police Criminelle | In French | → International relations → Police |
| OJEU | Official Journal of the European Union | In English | → Serial publications, periodicals → International relations |
| OKB | Organizata e Kombeve të Bashkuara = UN | Unuigintaj Nacioj | In Esperanto = ONU | Organisation des Nations Unies | In French = ONU | Organizazión d'as Nazions Unitas | In Aragonese = ААН | Арганіза́цыя Аб'ядна́ных На́цый | In Belarusian = VN | Verenigde Nasies | In Afrikaans = ONU | Organización de les Naciones Uníes | In Asturian = OOH | Организацията на обединените нации | In Bulgarian = ABU | Aozadur ar Broadoù Unanet | In Breton = ПНО | Пĕрлешнĕ Нацисен Организацийĕ | In Chuvash = FN | Feriene Naasjes | In Frisian = UN | United Nations | In English = NBE | Nazio Batuen Erakundea | In Basque = ONU | Organización das Nacións Unidas | In Occitan = UN | Unuiĝinta Naciaro | In Esperanto = UN | Ujedinjeni Narodi | In Bosnian = CN | Consociatio Nationum | In Latin = FN | Forenede Nationer | In Danish = UN | Unionita Nacioni | In Ido = ONU | Organizzazione delle Nazioni Unite | In Italian = KU | Kenedhlow Unys | In Cornish = ONU | Organització de les Nacions Unides | In Catalan = ΟΗΕ | Οργανισμός Ηνωμένων Εθνών | In Greek = ΗΕ | Ηνωμένα Έθνη | In Greek = ONU | Organización de las Naciones Unidas | In Spanish = VN | Vereinte Nationen | In German = VN | Verenigde Naties | In Dutch = VN | Vereent Natiounen | In Letzeburgesh = ООН | Организация Oбъединённых Hаций | In Russian = ONU | Organisacion des Nacions unies | In Franco-Provençal = ONZ | Organizacja Narodów Zjednoczonych | In Polish = BMT | Birlashgan Millatlar Tashkiloti | In Uzbek = ООН | Організація Об'єднаних Націй | In Ukrainian = BM | Birleşmiş Milletler | In Turkish = LHiQ | Liên Hiệp Quốc | In Vietnamese = OSN | Organizácia Spojených národov | In Slovak = OZN | Organizacija Združenih Narodov | In Slovenian = УН | Уједињене нације | In Serbian = FN | Förenta nationerna | In Swedish = UM | Umoja wa Mataifa | In Swahili = NU | Nazzioni Uniti | In Sicilian = ONU | Organizaţia Naţiunilor Unite | In Romanian = ONU | Organização das Nações Unidas | In Portuguese = VN | Vereenten Natschonen | In Low German = ST | Sameindu Tjóðir | In Faroese = HN | Huñusqa Nasyunkuna | In Quechua = PBB | Pertubuhan Bangsa-bangsa Bersatu | In Malay = NA | Náisiúin Aontaithe | In Irish = ÜRO | Ühinenud Rahvaste Organisatsioon | In Estonian = SÞ | Sameinuðu þjóðanna | In Icelandic |
In Albanian | → International relations → United Nations |
| ÖKISTA | Österreichisches Komitee für Internationalen Studentenaustausch | In German | → Organizations and associations → International relations → Higher education, universities |
| OLP | Organização para a Libertação da Palestina = PLO | Palestine Liberation Organization | In English = FAT | Fələstin Azadlıq Təşkilatı | In Azerbaijani = ООП | Организация за освобождение на Палестина | In Bulgarian = OAP | Organització per a l'Alliberament de Palestina | In Catalan = OOP | Organizace pro osvobození Palestiny | In Czech = OLP | Organización para la Liberación de Palestina | In Spanish = OLP | Organisation de Libération de la Palestine | In French = PAE | Palestinaren Askapenerako Erakundea | In Basque = OLP | Organizaĵo por Liberigo de Palestino | In Esperanto = OLP | Organización para a Liberación da Palestina | In Galician = PLO | 팔레스타인 해방기구 | In Korean = OWP | Organizacja Wyzwolenia Palestyny | In Polish = PLO | パレスチナ解放機構 | In Japanese = ПЛО | Палестинската ослободителна организација | In Macedonian = PIO | Palestinos išsivadavimo organizacija | In Lithuanian = პგო | პალესტინის განთავისუფლების ორგანიზაცია | In Georgian = OLP | Organizzazione per la Liberazione della Palestina | In Italian = ООП | Организация освобождения Палестины | In Russian = ПЛО | Палестинска ослободилачка организација | In Serbian = PLO | 巴勒斯坦解放組織 | In Chinese = OВП | Організація визволення Палестини | In Ukrainian = FKÖ | Filistin Kurtuluş Örgütü | In Turkish |
In Portuguese | → Political parties and movements |
| OLP | Organizzazione per la Liberazione della Palestina = PLO, FAT, ООП, OAP, OOP, PAE, OWP, ПЛО, PIO, პგო, OВП, FKÖ (look above) |
In Italian | → Political parties and movements |
| OLP | Organización para a Liberación da Palestina = PLO, FAT, ООП, OAP, OOP, PAE, OWP, ПЛО, PIO, პგო, OВП, FKÖ (look above) |
In Galician | → Political parties and movements |
| OLP | Organización para la Liberación de Palestina = PLO, FAT, ООП, OAP, OOP, PAE, OWP, ПЛО, PIO, პგო, OВП, FKÖ (look above) |
In Spanish | → Political parties and movements |
| OLP | Organisation de Libération de la Palestine = PLO, FAT, ООП, OAP, OOP, PAE, OWP, ПЛО, PIO, პგო, OВП, FKÖ (look above) |
In French | → Political parties and movements |
| OLP | Organizaĵo por Liberigo de Palestino = PLO, FAT, ООП, OAP, OOP, PAE, OWP, ПЛО, PIO, პგო, OВП, FKÖ (look above) |
In Esperanto | → Political parties and movements |
| OMC | Organisation Mondiale du Commerce = MOK | Monda Organiz(aĵ)o pri Komerco | In Esperanto = MKO | Monda Komerca Organizaĵo | In Esperanto = WTO | World Trade Organization | In English |
In French | → International relations → Trade |
| OMI | Organisation Maritime Internationale = IMO | International Maritime Organization | In English = IMO | Internacia Mar-Organizo | In Esperanto |
In French | → International relations → Marine research, oceanography → 6295 → Agricultural sciences |
| OMM | Organisation Météorologique Mondiale = MMO | Monda Meteologia Organizo | In Esperanto = WMO | World Meteriological Organization | In English |
In French | → International relations → Meteorology, climatology |
| OMPI | Organisation Mondiale de la Propriété Intellectuelle (www.wipo.int) = WIPO | World Intellectual Property Organisation | In English = MOIP | Monda Organizo pri Intelekta Proprieto | In Esperanto = WIPO | World Intellectual Property Organization | In English = OMPI | Organizaţia Mondială a Proprietăţii Intelectuale | In Romanian |
In French | → International relations → Industrial property → Artistic property |
| OMPI | Organizaţia Mondială a Proprietăţii Intelectuale (www.wipo.int) = WIPO, MOIP (look above) |
In Romanian | → International relations → Industrial property → Artistic property |
| OMSP | Organización Mundial de la Salud Pública | In Spanish | → Organizations and associations → International relations → Public health and hygiene |
| ONA | Organizo por Nutrado kaj Agrikulturo = FAO | Food and Agriculture Organization | In English |
In Esperanto | → International relations → Agricultural sciences → Food technology |
| ONU | Organisation des Nations Unies (www.un.org/french/) = OKB, UN, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OSN, OZN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In French | → International relations → United Nations |
| ONU | Organización de les Naciones Uníes (www.un.org) = OKB, UN, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OSN, OZN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In Asturian | → International relations → United Nations |
| ONU | Organizazión d'as Nazions Unitas (www.un.org) = OKB, UN, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OSN, OZN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In Aragonese | → International relations → United Nations |
| ONU | Organización das Nacións Unidas (www.un.org) = OKB, UN, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OSN, OZN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In Occitan | → International relations → United Nations |
| ONU | Organización de las Naciones Unidas (www.un.org/spanish/) = OKB, UN, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OSN, OZN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In Spanish | → International relations → United Nations |
| ONU | Organização das Nações Unidas = OKB, UN, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OSN, OZN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In Portuguese | → International relations → United Nations |
| ONU | Organització de les Nacions Unides (www.un.org) = OKB, UN, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OSN, OZN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In Catalan | → International relations → United Nations |
| ONU | Organizaţia Naţiunilor Unite = OKB, UN, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OSN, OZN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In Romanian | → International relations → United Nations |
| ONU | Organisacion des Nacions unies (www.un.org) = OKB, UN, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OSN, OZN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In Franco-Provençal | → International relations → United Nations |
| ONU | Organizzazione delle Nazioni Unite (www.un.org) = OKB, UN, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OSN, OZN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In Italian | → International relations → United Nations |
| ONZ | Organizacja Narodów Zjednoczonych (www.un.org) = OKB, UN, ONU, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, BMT, LHiQ, OSN, OZN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In Polish | → International relations → United Nations |
| OOH | Организацията на обединените нации (www.un.org) = OKB, UN, ONU, ААН, VN, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OSN, OZN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In Bulgarian | → International relations → United Nations |
| OOP | Organizace pro osvobození Palestiny = OLP, PLO, FAT, ООП, OAP, PAE, OWP, ПЛО, PIO, პგო, OВП, FKÖ (look above) |
In Czech | → Political parties and movements |
| OPAS | Organização Pan-Americana da Saúde (www.paho.org) = OPS | Organización Panamericana de la Salud | In Spanish = PAHO | Pan American Health Organization | In English |
In Portuguese | → Organizations and associations → International relations → Medicine |
| OPDS | Organ on Politics, Defence and Security | In English | → International relations → 355 |
| OPECST | Office Parlementaire d'Évaluation des Choix Scientifiques et Technologiques | In French | → Research policy → Engineering, technology |
| OPS | Organización Panamericana de la Salud (www.paho.org) = OPAS, PAHO (look above) |
In Spanish | → Organizations and associations → International relations → Medicine |
| OPWC | Organisation for the Prohibition of Chemical Weapons (www.opcw.org) = OIAC (look above) |
In English | → Organizations and associations → International relations → Military engineering |
| ORIENT | Oriental Research Infrastructure to European Networks | In English | → Research policy → International relations |
| ORPCF | Organisation pour la Reconstruction du Parti Communiste de France | In French | → Political parties and movements |
| OSCE | Organization for Security and Cooperation in Europe = OSCE | Organisation pour la Sécurité et la Coopération en Europe | In French |
In English | → International relations |
| OSCE | Organisation pour la Sécurité et la Coopération en Europe = (look above) |
In French | → International relations |
| OSE | Oeuvre de Secours aux Enfants | In French | → Organizations and associations |
| ÖSFK | Österreichisches Studienzentrum für Frieden und Konfliktlösung | In German | → Research institutes → Polemology |
| OSI | Open Society Institute | In English | → Fundamental rights |
| OSI | Otto-Suhr-Institut für Politikwissenschaft | In German | |
| OSMOI | Organisation Spéciale de la Main d’Oeuvre Immigrée | In French | → Political parties and movements → History |
| OSN | Organizácia Spojených národov = OKB, UN, ONU, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OZN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In Slovak | → International relations → United Nations |
| OSN | Organizace Spojených Národů | In Czech | → International relations → United Nations |
| OTAN | Organització del Tractat de l'Atlàntic Nord (www.nato.int) = NATO | North Atlantic Treaty Organisation | In English = OTAN | Organizazión d'o Tratau de l'Atlantico Norte | In Aragonese = OTAN | Organización del Tratáu del Atlánticu Norte | In Asturian = AFNA | Aozadur Feur-emglev Norzh-Atlantel | In Breton = OTAN | Organisation du Traité de l'Atlantique Nord | In French = ন্যাটো | উত্তর আটলান্টিক নিরাপত্তা জোট | In Bengali = NATO | Οργανισμός Βορειοατλαντικού Συμφώνου | In Greek = NATO | Nordatlantikvertrag-Organisation | In German = OTAN | Organización del Tratado del Atlántico Norte | In Spanish = NATO | Nord-Atlantika Traktat-Organizo | In Esperanto = NAFO | Noard-Atlantyske Ferdrachsorganisaasje | In Frisian = OTAN | Organización do Tratado do Atlántico Norte | In Galician = ნატო | ჩრდილოატლანტიკური თანამშრომლობის ორგანიზაცია | In Georgian = OTAN | Organização do Tratado do Atlântico Norte | In Portuguese = OTNA | Organizaciya le Tratatosko le Nordutne Atlantikosko | In Vlax Romani = OTAN | Organizaţia Tratatului Atlanticului de Nord | In Romanian = NATO | Organisatschoon vun den Noordatlantikverdrag | In Low German |
In Catalan | → International relations |
| OTAN | Organizaţia Tratatului Atlanticului de Nord (www.nato.int) = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA (look above) |
In Romanian | → International relations |
| OTAN | Organizazión d'o Tratau de l'Atlantico Norte (www.nato.int) = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA (look above) |
In Aragonese | → International relations |
| OTAN | Organisation du Traité de l'Atlantique Nord (www.nato.int) = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA (look above) |
In French | → International relations |
| OTAN | Organização do Tratado do Atlântico Norte (www.nato.int) = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA (look above) |
In Portuguese | → International relations |
| OTAN | Organización do Tratado do Atlántico Norte (www.nato.int) = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA (look above) |
In Galician | → International relations |
| OTAN | Organización del Tratado del Atlántico Norte (www.nato.int) = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA (look above) |
In Spanish | → International relations |
| OTAN | Organización del Tratáu del Atlánticu Norte (www.nato.int) = NATO, AFNA, ন্যাটো, NAFO, ნატო, OTNA (look above) |
In Asturian | → International relations |
| OTNA | Organizaciya le Tratatosko le Nordutne Atlantikosko (www.nato.int) = OTAN, NATO, AFNA, ন্যাটো, NAFO, ნატო (look above) |
In Vlax Romani | → International relations |
| OUA | Organisation de l’Unité Africaine | In French | → International relations |
| OUNID | Organizo de la Unuiĝintaj Nacioj por Industria Disvolvado (www.unido.org) = UNIDO | United Nations Industrial Development Organization | In English |
In Esperanto | → International relations → Industry, industrial policy → United Nations |
| OWP | Organizacja Wyzwolenia Palestyny = OLP, PLO, FAT, ООП, OAP, OOP, PAE, ПЛО, PIO, პგო, OВП, FKÖ (look above) |
In Polish | → Political parties and movements |
| OZN | Organizacija Združenih Narodov = OKB, UN, ONU, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OSN, УН, UM, ST, HN, PBB, NA, ÜRO, SÞ (look above) |
In Slovenian | → International relations → United Nations |
| OВП | Організація визволення Палестини = OLP, PLO, FAT, ООП, OAP, OOP, PAE, OWP, ПЛО, PIO, პგო, FKÖ (look above) |
In Ukrainian | → Political parties and movements |
| PA | Présence Africaine | In French | → Serial publications, periodicals |
| PAE | Palestinaren Askapenerako Erakundea = OLP, PLO, FAT, ООП, OAP, OOP, OWP, ПЛО, PIO, პგო, OВП, FKÖ (look above) |
In Basque | → Political parties and movements |
| PAHO | Pan American Health Organization (www.paho.org) = OPAS, OPS (look above) |
In English | → Organizations and associations → International relations → Medicine |
| PALH | Physician Assistant for Latino Health | In English | → Organizations and associations → Medicine → International relations |
| PARLACEN | Parlamento Centroamericano (www.parlacen.org.gt) | In Spanish | → International relations → Parliaments, representation |
| PARTEI | Partei für Arbeit, Rechtsstaat, Tierschutz, Elitenförderung & basisdemokratische Initiative | In German | → Political parties and movements |
| PAS | Parti Islam SeMalaysia | In Malay | → Islam → Political parties and movements |
| PBB | Pertubuhan Bangsa-bangsa Bersatu = OKB, UN, ONU, ААН, VN, OOH, ABU, ПНО, FN, NBE, CN, KU, ΟΗΕ, ООН, ONZ, BMT, LHiQ, OSN, OZN, УН, UM, ST, HN, NA, ÜRO, SÞ (look above) |
In Malay | → International relations → United Nations |
| PCC | Parti Communiste Chinois | In French | → Political parties and movements |
| PCF | Parti Communiste Français | In French | → Political parties and movements |
| PCMLF | Parti Communiste Marxiste-Léniniste de France | In French | → Political parties and movements |
| PCO | Partido Comunista de España | In Spanish | → Political parties and movements |
| PCOF | Parti Communiste des Ouvriers de France | In French | → Political parties and movements |
| PCP | Partido Comunista Português | In Portuguese | → Political parties and movements |
| PCRDT | Programme Cadre de Recherche et Développement Technologique | In French | → International relations → Mathematics and natural sciences → Engineering, technology |
| PCUS | Parti Communiste de l'Union Soviétique = SKUS | Strollad Komunour an Unaniezh Soviedel | In Breton = KPdSU | Kommunistische Partei der Sowjetunion | In German = KПCC | Коммунистическая партия Советского Союза | In Russian = KПCC | Kommunistitscheskaja Partija Sowjetskogo Sojusa | In Russian = KSSR | Komunistická strana Sovětského svazu | In Czech = KPSU | Komunisma Partio de Soveta Unio | In Esperanto = PCUS | Partito Comunista dell'Unione Sovietica | In Italian = KPSU | Komunisma Partio de Soveta Unio | In Esperanto |
In French | → Political parties and movements |
| PCUS | Partito Comunista dell'Unione Sovietica = SKUS, KPdSU, KПCC, KSSR, KPSU (look above) |
In Italian | → Political parties and movements |
| PDE | Partit Demòcrata Europeu | In Catalan | → Political parties and movements |
| PDS | Parti Démocratique Sénégalais | In French | → Political parties and movements |
| PE | Parlamentul European (www.europarl.europa.eu) = PE | Parlamento Europeo | In Spanish = EP | Eŭropa Parlamento | In Esperanto = EP | European Parliament | In English = EP | Europäisches Parlament | In German = ΕΚ | Ευρωπαϊκό Κοινοβούλιο | In Greek = EP | Evropský parlament | In Czech = PE | Parlament Europeu | In Catalan = ЕП | Европейски парламент | In Bulgarian = AP | Avropa Parlamenti | In Azerbaijani = PE | Parlement Européen | In French = EP | Europäescht Parlament | In Letzeburgesh = PE | Parlamento Europeo | In Italian = EP | Európai Parlament | In Hungarian = EP | Európsky parlament | In Slovak = PE | Parlamento Europeu | In Portuguese = PE | Parlament Europejski | In Polish = EP | Europees Parlement | In Dutch |
In Romanian | → Parliaments, representation → European Union |
| PE | Parlament Europejski (www.europarl.europa.eu) = EP, ΕΚ, ЕП, AP (look above) |
In Polish | → Parliaments, representation → European Union |
| PE | Parlamento Europeo (www.europarl.europa.eu) = EP, ΕΚ, ЕП, AP (look above) |
In Italian | → Parliaments, representation → European Union |
| PE | Parlement Européen (www.europarl.europa.eu) = EP, ΕΚ, ЕП, AP (look above) |
In French | → Parliaments, representation → European Union |
| PE | Parlament Europeu (www.europarl.europa.eu) = EP, ΕΚ, ЕП, AP (look above) |
In Catalan | → Parliaments, representation → European Union |
| PE | Parlamento Europeu (www.europarl.europa.eu) = EP, ΕΚ, ЕП, AP (look above) |
In Portuguese | → Parliaments, representation → European Union |
| PE | Parlamento Europeo (www.europarl.europa.eu) = EP, ΕΚ, ЕП, AP (look above) |
In Spanish | → Parliaments, representation → European Union |
| PEB | Plan d'Exposition au Bruit | In French | |
| PECC | Pacific Economic Cooperation Council | In English | → International relations → Economics |
| PES | Party of European Socialists = PES | Partia Europejskich Socjalistów | In Polish = PSE | Parti Socialiste Européen | In French = ESP | Europeiska socialdemokratiska partiet | In Swedish = PSE | Partito del Socialismo Europeo | In Italian |
In English | → Political parties and movements |
| PES | Partia Europejskich Socjalistów = PSE, ESP (look above) |
In Polish | → Political parties and movements |
| PESC | Politique Étrangère et de Sécurité Commune = CFSP | Common Foreign and Security Policy | In English = GASP | Gemeinsame Außen- und Sicherheitspolitik | In German = WPZiB | Wspólna polityka zagraniczna i bezpieczeństwa | In Polish = GBVB | Gemeenschappelijk Buitenlands en Veiligheidsbeleid | In Dutch = PESC | Politica Estera e di Sicurezza Comune | In Italian = SZPB | Společná zahraniční a bezpečnostní politika | In Czech = СЗБП | Спільна зовнішня та безпекова політика | In Ukrainian = SZPB | Spoločná zahraničná a bezpečnostná politika | In Slovak = PESC | Política Externa e de Segurança Comum | In Portuguese = FUSP | Felles utenriks- og sikkerhetspolitikk | In Norwegian |
In French | → European Union → International relations → Police |
| PESC | Politica Estera e di Sicurezza Comune = CFSP, GASP, WPZiB, GBVB, SZPB, СЗБП, FUSP (look above) |
In Italian | → European Union → International relations → Police |
| PESC | Política Externa e de Segurança Comum = CFSP, GASP, WPZiB, GBVB, SZPB, СЗБП, FUSP (look above) |
In Portuguese | → European Union → International relations → Police |
| PEV | Parti Évangélique (www.evppev.ch) = EVP | Evangelische Volkspartei | In German |
In French | → Political parties and movements → Christianity |
| PFJ | Parlement Francophone des Jeunes | In French | → Parliaments, representation |
| PGS | Primorsko Goranski Savez (www.pgs.hr) | In Croatian | → Political parties and movements |
| PGS | Primorsko-Goranski Savez (www.pgs.hr) | In Croatian | → Political parties and movements |
| PGSU | Primorsko Goranska Stranka Umirovljenika | In Croatian | → Political parties and movements |
| PGUE | Presupuesto General de la Unión Europea | In Spanish | → International relations |
| PIDPI | Pacific Islands Development Program | In English | |
| PIDS | Philippine Institute for Development Studies | In English | |
| PIIA | Pakistan Institute of International Affairs | In English | → International relations |
| PIO | Palestinos išsivadavimo organizacija = OLP, PLO, FAT, ООП, OAP, OOP, PAE, OWP, ПЛО, პგო, OВП, FKÖ (look above) |
In Lithuanian | → Political parties and movements |
| PIPSA | Pacific Islands Political Studies Association | In English | → Associations |
| PIPSS | (The Journal of) Power Institutions in Post-Soviet Societies | In English | → Serial publications, periodicals |
| PKM | Partit Komunista Malti | In Maltese | → Political parties and movements |
| PL | Partit Laburista = MLP | Malta Labour Party | In English |
In Maltese | → Political parties and movements |
| PLF | Projet de Loi de Finances | In French | → Economics |
| PLO | 巴勒斯坦解放組織 = OLP, FAT, ООП, OAP, OOP, PAE, OWP, ПЛО, PIO, პგო, OВП, FKÖ (look above) |
In Chinese | → Political parties and movements |
| PLO | 팔레스타인 해방기구 = OLP, FAT, ООП, OAP, OOP, PAE, OWP, ПЛО, PIO, პგო, OВП, FKÖ (look above) |
In Korean | → Political parties and movements |
| PLO | Palestine Liberation Organization = OLP, FAT, ООП, OAP, OOP, PAE, OWP, ПЛО, PIO, პგო, OВП, FKÖ (look above) |
In English | → Political parties and movements |
| PLO | パレスチナ解放機構 = OLP, FAT, ООП, OAP, OOP, PAE, OWP, ПЛО, PIO, პგო, OВП, FKÖ (look above) |
In Japanese | → Political parties and movements |
| PLQ | Parti Libéral du Québec | In French | → Political parties and movements |
| PMN | Parti Mahasiswa Negara | In Malay | → Political parties and movements |
| PN | Partit Nazzjonalista | In Maltese | → Political parties and movements |
| PNB | Parti Nationaliste Basque (www.eaj-pnb.eu) | In French | → Political parties and movements |
| PNC | Partitu di a Nazione Corsu | In Corsican | → Political parties and movements |
| PNC | Parti de la Nation Corse | In French | → Political parties and movements |
| PNM | Persemakmuran Negara-Negara Merdeka = CIS | Commonwealth of Independent States | In English |
In Indonesian | → International relations |
| PNO | Partit de la Nacion Occitana | In Occitan | → Political parties and movements |
| PNO | Parti Nationaliste Occitan | In French | → Political parties and movements |
| PNR | Partido Nacional Renovador | In Portuguese | → Political parties and movements |
| PNUAH | Programa de les Naciones Uníes pa los Asentamientos Humanos | In Asturian | → International relations → United Nations |
| PNUD | Programa de les Naciones Uníes pa'l Desendolcu = PNUD | Programme des Nations Unies pour le Développement | In French = PNUD | Programul Naţiunilor Unite pentru Dezvoltare | In Romanian = PUND | Programo de la Unuiĝintaj Nacioj pri Disvolvado | In Esperanto = UNDP | United Nations Development Programme | In English = PNUD | Programa de las Naciones Unidas para el Desarrollo | In Spanish = PNUD | Programa de les Nacions Unides per al Desenvolupament | In Catalan = UNDP | გაეროს განვითარების პროგრამა | In Georgian = UNDP | জাতিসংঘ উন্নয়ন কর্মসূচী | In Bengali = PNUD | Programa das Nações Unidas para o Desenvolvimento | In Portuguese = ПРООН | Программа развития ООН | In Russian = UNDP | สำนักงานโครงการพัฒนาแห่งสหประชาชาติ | In Thai = UNDP | ஐக்கிய நாடுகள் வளர்ச்சித் திட்டம் | In Tamil = UNDP | 联合国开发计划署 | In Chinese |
In Asturian | → International relations → Development → United Nations |
| PNUD | Programul Naţiunilor Unite pentru Dezvoltare = PUND, UNDP, ПРООН (look above) |
In Romanian | → International relations → Development → United Nations |
| PNUD | Programme des Nations Unies pour le Développement = PUND, UNDP, ПРООН (look above) |
In French | → International relations → Development → United Nations |
| PNUD | Programa de les Nacions Unides per al Desenvolupament = PUND, UNDP, ПРООН (look above) |
In Catalan | → International relations → Development → United Nations |
| PNUD | Programa das Nações Unidas para o Desenvolvimento = PUND, UNDP, ПРООН (look above) |
In Portuguese | → International relations → Development → United Nations |
| PNUD | Programa de las Naciones Unidas para el Desarrollo = PUND, UNDP, ПРООН (look above) |
In Spanish | → International relations → Development → United Nations |
| PNUFID | Programa de les Naciones Uníes pa la Fiscalización Internacional de Drogues | In Asturian | → International relations → United Nations |
| PNUMA | Programa de les Naciones Uníes pa 'l Mediu Ambiente | In Asturian | → International relations → United Nations |
| PNV | Partido Nacionalista Vasco (www.eaj-pnv.eu) = EAJ | Euzko Alderdi Jeltzalea | In Basque |
In Spanish | → Political parties and movements |
| PoA | Politique Africaine | In French | → Serial publications, periodicals |
| POc | Partit Occitan | In Occitan | → Political parties and movements |
| POSL | Parti Ouvrier Socialiste Luxembourgeois = LSAP | Lëtzebuerger Sozialistesch Aarbechterpartei | In Letzeburgesh = LSAP | Luxemburger Sozialistische Arbeiterpartei | In German = LSAP | Luxemburgse Socialistische Arbeiderspartij | In Dutch |
In French | → Political parties and movements |
| POWN | Polska Organizacja Walki o Niepodleglość | In Polish | → Political parties and movements → History |
| PPE | Partit Popular Europeu | In Catalan | → Political parties and movements |
| PPF | Parti Populaire Français | In French | → Political parties and movements → History |
| PPS | Partija Podunavskih Srba | In Croatian | → Political parties and movements |
| PQ | Parti Québécois | In French | → Political parties and movements |
| PRCF | Pôle de Renaissance Communiste en France | In French | → Political parties and movements |
| PREST | Policy Research in Engineering, Science and Technology | In English | → Mathematics and natural sciences → Applied sciences, technology |
| PRG | Parti Radical de Gauche | In French | → Political parties and movements |
| PS | Parti Socialiste | In French | → Political parties and movements |
| PS | Partido Socialista | In Portuguese | → Political parties and movements |
| PS | Podravska Stranka | In Croatian | → Political parties and movements |
| PSA | Pàrtaidh Shòisealach na h-Alba = SSP | Scottish Socialist Party | In English |
In Scottish Gaelic | → Political parties and movements |
| PSD | Partido Social Democrata | In Portuguese | → Political parties and movements |
| PSD | Partidul Social Democrat din Moldova (www.psdm.md) | In Moldavan | → Political parties and movements |
| PSD | Partidul Social Democrat (www.psd.ro) | In Romanian | → Political parties and movements |
| PSDLO | Páirtí Sóisialta Daonlathach an Lucht Oibre = SDLP | Social Democratic and Labour Party | In English |
In Irish | → Political parties and movements |
| PSDMR | Partidul Social Democrat al Muncii din Rusia = РСДРП | Росси́йская Социа́л-Демократи́ческая Рабо́чая Па́ртия | In Russian |
In Romanian | → Political parties and movements |
| PSE | Parti Socialiste Européen = PES, ESP (look above) |
In French | → Political parties and movements |
| PSE | Partito del Socialismo Europeo = PES, ESP (look above) |
In Italian | → Political parties and movements |
| PSF | Parti Social Français | In French | → Political parties and movements |
| PSI | Partitu Sucialistu per l'Indipendenza | In Corsican | → Political parties and movements |
| PSOE | Partido Socialista Obrero Español | In Spanish | → Political parties and movements |
| PSR | Padomju Sociālistiskajām Republikām = RSS | Repubbliche Socialiste Sovietiche | In Italian = RSS | Republici Sovietice Socialiste | In Romanian = SSR | Sovjetskih Socialističnih Republik | In Slovenian = RSS | Républiques Socialistes Soviétiques | In French |
In Latvian | → Geography |
| PSRS | Padomju Sociālistisko Republiku Savienība = URSS | Unaniezh ar Republikoù Sokialour Soviedel | In Breton = URSS | Union des Républiques Socialistes Soviétiques | In French = USSR | Unie van Sosialistiese Sowjetrepublieke | In Afrikaans = USSR | Union of Soviet Socialist Republics | In English = СССР | Сою́з Сове́тских Социалисти́ческих Респу́блик | In Russian = CCCP | Съюзът на съветските социалистически републики | In Bulgarian = SSSR | Soyuz Sovetskikh Sotsialisticheskikh Respublik | In Russian = URSS | Unión de Republicas Sozialistas Sobieticas | In Aragonese = XRSS | Xunión de les Repúbliques Socialistes Soviétiques | In Asturian = SSRİ | Sovet Sosialist Respublikaları İttifaqı | In Azerbaijani = TSRS | Tarybu Socialistiniu Respubliku Sajunga | In Baltic languages = SSSR | Savez Sovjetskih Socijalističkih Republika | In Serbo-Croatian = URSS | Unió de Repúbliques Socialistes Soviètiques | In Catalan = SSSR | Svaz sovětských socialistických republik | In Czech = USSR | Unio de Sovetaj Socialismaj Respublikoj | In Esperanto = CCCP | Социаллă Совет Республикисен Союзĕ | In Chuvash = USSR | Unionen af Socialistiske Sovjetrepublikker | In Danish = URSS | Unione delle Repubbliche Socialiste Sovietiche | In Italian = ZSRR | Związek Socjalistycznych Republik Radzieckich | In Polish = SSKS | Szovjet Szocialista Köztársaságok Szövetsége | In Hungarian = UdSSR | Union der Sozialistischen Sowjetrepubliken | In German = ΕΣΣΔ | Ένωση Σοβιετικών Σοσιαλιστικών Δημοκρατιών | In Greek = URSS | Unión de Repúblicas Socialistas Soviéticas | In Spanish = NSVL | Nõukogude Sotsialistlike Vabariikide Liit | In Estonian = SESB | Sobietar Errepublika Sozialisten Batasuna | In Basque = USSR | Uny fan Sosjalistyske Sowjetrepublyken | In Frisian = ԽՍՀՄ | Խորհրդային Սոցիալիստական Հանրապետությունների Միություն | In Armenian = URSS | Unión das Repúblicas Socialistas Soviéticas | In Galician = სსრკ | საბჭოთა სოციალისტური რესპუბლიკების კავშირი | In Georgian = URSS | Unio Rerum Publicarum Socialisticarum Sovieticarum | In Latin = CCPC | Советтик Социалисттик Республикалар Союзу | In Kirghiz = UdSSR | Unioun vun de Sozialistesche Sowjetrepubliken | In Letzeburgesh = СССР | Сојуз на Советските Социјалистички Републики | In Macedonian = УРСС | Униуня Републичилор советиче Сочиалисте | In Moldavan = KRSS | Kesatuan Republik Sosialis Soviet | In Malay = USSR | Unie van Socialistische Sovjetrepublieken | In Dutch = SSSR | Sambandet av Sosialistiske Sovjet-Republikkar | In Nynorsk = SSSR | Samveldet av sovjetiske sosialistrepublikker | In Norwegian = URSS | Unnion d'Républyiques Socialistes Soviétiques | In Norman = URSS | União das Repúblicas Socialistas Soviéticas | In Portuguese = URSS | Union de las Republicas Socialistas Sovieticas | In Occitan = SSRH | Susyalista Suwit Republikakunap Huñun | In Quechua = ССРЦ | Советон Социалистон Республикæты Цæдис | In Ossetian = URSS | Uniunea Republicilor Sovietice Socialiste | In Romanian = URSS | Unioni dî ripùbblichi sucialisti suviètichi | In Sicilian = ZSSR | Zveza sovjetskih socialističnih republik | In Slovenian = СССР | Савез Совјетских Социјалистичких Република | In Serbian = SSCB | Sovyet Sosyalist Cumhuriyetler Birliği | In Turkish = СРСР | Союз Радянських Соціалістичних Республік | In Ukrainian = SSRB | Sovet Sosialistik Republiklar Berlege | In Tatar = SSRI | Sovet Sotsialistik Respublikalar Ittifoqi | In Uzbek |
In Latvian | → International relations → Geography |
| PSS | Posavsko Slavonska Stranka | In Croatian | → Political parties and movements |
| PT | Parti des Travailleurs | In French | → Political parties and movements |
| PUND | Programo de la Unuiĝintaj Nacioj pri Disvolvado = PNUD, UNDP, ПРООН (look above) |
In Esperanto | → International relations → Development → United Nations |
| PUR | Parti de l'Union Radicale | In French | → Political parties and movements |