| Okinawa | Okinawa |
| Okinawa Island | Okinawa |
| Okinawan language | Okinawais |
| Okinotorishima | Okinotorishima |
| Okita Sōji | Sōji Okita |
| Oklahoma | Oklahoma |
| Oklahoma - Oklahoma City | Texas |
| Oklahoma City | Oklahoma City |
| Oklahoman | Oklahomien |
| Okondo | Okondo |
| Okonomiyaki | Okonomiyaki |
| Okopowa Street Jewish Cemetery | Cimetière juif de Varsovie |
| okra | gombo |
| Okrug | Okroug |
| Oksana Akinshina | Oksana Akinchina |
| Oksana Baiul | Oksana Baiul |
| Oksana Domnina | Oksana Domnina |
| Oksana Grishuk | Oksana Grishuk |
| Oksana Kazakova | Oksana Kazakova |
| Oksana Khvostenko | Oksana Khvostenko |
| Oktoberfest | Oktoberfest |
| Oku Yasukata | Yasukata Oku |
| Okuchichibu Mountains | Monts Okuchichibu |
| Okurigana | Okurigana |
| Okushiri Island | Île Okushiri |
| OL | OL |
| Ol Chiki script | Alphabet santâlî |
| Ol Doinyo Lengai | Ol Doinyo Lengaï |
| Ola Håkansson | Ola Håkansson |
| Olaberria | Olaberria |
| Olaf Cuaran | Olaf Kvaran |
| Olaf I of Denmark | Oluf Ier de Danemark |
| Olaf I of Norway | Olaf Ier de Norvège |
| Olaf II of Denmark | Oluf II de Danemark |
| Olaf II of Norway | Olaf II de Norvège |
| Olaf III Guthfrithson | Olaf Gothfrithson |
| Olaf III of Norway | Olaf III de Norvège |
| Olaf Kölzig | Olaf Kölzig |
| Olaf Magnusson of Norway | Olaf IV de Norvège |
| Olaf Stapledon | Olaf Stapledon |
| Olanesti | Olanesti |
| Olang | Valdaora |
| Olanzapine | Olanzapine |
| OLAP cube | Hypercube OLAP |
| Olargues | Olargues |
| Olaus Magnus | Olaus Magnus |
| Olaus Rudbeck | Olof Rudbeck |
| Olav | Olof de Suède |
| Olav IV of Norway | Oluf III de Danemark |
| Olav V of Norway | Olav V de Norvège |
| Olavarría Partido | Olavarría |
| Olbernhau | Olbernhau |
| Olbia | Olbia |
| old | âgé |
| old age | vieillesse |
| Old Bailey | Old Bailey |
| Old Believers | Orthodoxes vieux-croyants |
| Old Bushmills Distillery | Bushmills |
| Old Calendar Bulgarian Orthodox Church | Église orthodoxe vieille-calendariste de Bulgarie |
| Old Calendar Romanian Orthodox Church | Église orthodoxe vieille-calendariste de Roumanie |
| Old Cathedral of Coimbra | Cathédrale de Coimbra |
| Old Catholic Church | Église vieille-catholique |
| Old Catholic Church of Austria | Église vieille-catholique |
| Old Chinese | Chinois archaïque |
| Old Church Slavonic | Vieux slave |
| Old City | Vieille ville de Jérusalem |
| Old City of Jerusalem | Vieille ville de Jérusalem |
| Old conveyance | Bateau |
