| o ja | verkligen |
| o nee | d'oh |
| o wee | ack |
| o-benen | hjulbent |
| O-ring | O-ring |
| O-Zone | O-Zone |
| Oahu | Oahu |
| Oak Island | Oak Island |
| Oakland | Oakland |
| Oakland Athletics | Oakland Athletics |
| Oakland Raiders | Oakland Raiders |
| Oakland Seals | California Golden Seals |
| Oarses | Arses |
| Oasis | Oasis |
| Oaxaca | Oaxaca |
| Oaxaca de Juárez | Oaxaca de Juárez |
| Ob | Ob |
| Ob-Oegrische talen | Ob-ugriska språk |
| Obadja | Obadja |
| Obeid | Ubaid |
| Obelix | Obelix |
| Oben am jungen Rhein | Oben am jungen Rhein |
| ober | kypare |
| Oberammergau | Oberammergau |
| Oberbalm | Oberbalm |
| Oberbaumbrücke | Oberbaumbrücke |
| Oberbipp | Oberbipp |
| Oberburg | Oberburg |
| Oberbözberg | Oberbözberg |
| Oberdiessbach | Oberdiessbach |
| Oberegg | Oberegg |
| Oberek | Oberek |
| Oberems | Oberems |
| Oberentfelden | Oberentfelden |
| Oberflachs | Oberflachs |
| Obergesteln | Obergesteln |
| Oberhasli | Oberhasli |
| Oberhausen | Oberhausen |
| Oberhausen an der Nahe | Oberhausen |
| Oberhavel | Landkreis Oberhavel |
| Oberhof | Oberhof |
| Oberhofen | Oberhofen |
| Oberhünigen | Oberhünigen |
| Oberkommando der Marine | Oberkommando der Marine |
| Oberkommando der Wehrmacht | Oberkommando der Wehrmacht |
| Oberkommando des Heeres | Oberkommando des Heeres |
| Oberkulm | Oberkulm |
| Oberlangenegg | Oberlangenegg |
| Oberliga Nord | Oberliga Nord |
| Oberlunkhofen | Oberlunkhofen |
| Obermumpf | Obermumpf |
| Oberndorf bei Salzburg | Oberndorf bei Salzburg |
| Oberon | Oberon |
| Oberpullendorf | Oberpullendorf |
| Oberried am Brienzersee | Oberried am Brienzersee |
| Oberrohrdorf | Oberrohrdorf |
| Obersalzberg | Berghof |
| Obersaxen | Obersaxen |
| Obersiggenthal | Obersiggenthal |
| Obersimmental | Obersimmental |
| Oberspreewald-Lausitz | Landkreis Oberspreewald-Lausitz |
| Oberstaufen | Oberstaufen |
| Oberstdorf | Oberstdorf |
| Obersteckholz | Obersteckholz |
| Oberstocken | Oberstocken |
| Oberthal | Oberthal |
| Oberurnen | Oberurnen |
| Oberwald | Oberwald |
| Oberwart | Oberwart |
| Oberwil | Oberwil |
| Oberwil bei Büren | Oberwil bei Büren |
| Oberwil im Simmental | Oberwil im Simmental |
| Oberwil-Lieli | Oberwil-Lieli |
| Oberönz | Oberönz |
| Oberösch | Oberösch |
| obesitas | fetma |
| Obi-Wan Kenobi | Obi-Wan Kenobi |
| Object Pascal | Delphi |
| Object-oriëntatie | Objektorienterad programmering |
| objectief | mål |
| Objective-C | Objective-C |
| Objectivisme | Objektivism |
| Objectoriëntatie | Objektorienterad programmering |
| Oblast Amoer | Amur oblast |
| Oblast Aqmola | Aqmola |
| Oblast Archangelsk | Archangelsk oblast |
| Oblast Astrachan | Astrachan oblast |
| Oblast Belgorod | Belgorod oblast |
| Oblast Brest | Brest |
| Oblast Brjansk | Brjansk oblast |
| Oblast Charkov | Charkiv oblast |
| Oblast Cherson | Cherson oblast |
| Oblast Chmelnytsky | Chmelnytskyj oblast |
| Oblast Dnjepropetrovsk | Dnipropetrovsk oblast |
| Oblast Donetsk | Donetsk |
| Oblast Hrodna | Hrodna |
| Oblast Irkoetsk | Irkutsk oblast |
| Oblast Ivano-Frankivsk | Ivano-Frankivsk oblast |
| Oblast Ivanovo | Ivanovo oblast |
| Oblast Jaroslavl | Jaroslavl oblast |
| Oblast Kaliningrad | Kaliningrad oblast |
| Oblast Kaloega | Kaluga oblast |
| Oblast Kamtsjatka | Kamtjatka oblast |
| Oblast Kemerovo | Kemerovo oblast |
| Oblast Kiev | Kiev |
| Oblast Kirov | Kirov oblast |
| Oblast Kirovohrad | Kirovohrad oblast |
| Oblast Koergan | Kurgan oblast |
| Oblast Koersk | Kursk oblast |
| Oblast Kostroma | Kostroma oblast |
| Oblast Leningrad | Leningrad oblast |
| Oblast Lipetsk | Lipetsk oblast |
| Oblast Loehansk | Luhansk oblast |
| Oblast Lviv | Lviv |
| Oblast Magadan | Magadan oblast |
| Oblast Moermansk | Murmansk oblast |
| Oblast Moskou | Moskva oblast |
| Oblast Mykolajiv | Mykolajiv oblast |
| Oblast Nizjni Novgorod | Nizjnij Novgorod oblast |
| Oblast Novgorod | Novgorod oblast |
| Oblast Novosibirsk | Novosibirsk oblast |
| Oblast Odessa | Odessa |
| Oblast Oeljanovsk | Uljanovsk oblast |
| Oblast Omsk | Omsk oblast |
| Oblast Orenburg | Orenburg oblast |
| Oblast Orjol | Orjol oblast |
| Oblast Pavlodar | Pavlodar |
| Oblast Penza | Penza oblast |
| Oblast Perm | Perm oblast |
| Oblast Poltava | Poltava oblast |
| Oblast Pskov | Pskov oblast |
| Oblast Rjazan | Rjazan oblast |
| Oblast Rostov | Rostov oblast |
| Oblast Sachalin | Sachalin oblast |
| Oblast Samara | Samara oblast |
| Oblast Saratov | Saratov oblast |
| Oblast Smolensk | Smolensk oblast |
| Oblast Soemy | Sumy oblast |
| Oblast Sverdlovsk | Sverdlovsk oblast |
| Oblast Tambov | Tambov oblast |
| Oblast Ternopil | Ternopil oblast |
| Oblast Tjoemen | Tiumen oblast |
| Oblast Toela | Tula oblast |
| Oblast Tomsk | Tomsk oblast |
| Oblast Transkarpatië | Karpato-Ukraina |
| Oblast Tsjeljabinsk | Tjeljabinsk oblast |
| Oblast Tsjerkasy | Tjerkasy oblast |
| Oblast Tsjernihiv | Tjernihiv oblast |
| Oblast Tsjernivtsi | Tjernivtsi Oblast |
| Oblast Tsjita | Tjita oblast |
| Oblast Tver | Tver oblast |
| Oblast Vinnytsja | Vinnytsia oblast |
| Oblast Vladimir | Vladimir oblast |
| Oblast Vologda | Vologda oblast |
| Oblast Voronezj | Voronezj oblast |
| Oblast Wolgograd | Volgograd oblast |
| Oblast Zaporizja | Zaporizjzja oblast |
| Oblast Zjytomyr | Zjytomyr oblast |
| Oblasten van Rusland | Rysslands oblast |
| oblie | rån |
| obligatie | värdepapper |
| obligatiecertificaat | värdepapper |
| obligatoir | obligatorisk |
| obligatorisch | obligatorisk |
| Obliquiteit | Axellutning |
| Oblomov | Oblomov |
| Obrenović | Huset Obrenović |
| obsceen | oanständig |
