| Ogres fylke | Også vi | Oguchi Onyewu |
| Oguchigawa-demningen | Ogun (delstat) | Ogun State |
| Oguz Sirmali | Oguzhan Asiltürk | Oguzhan Nicholas Yerlikaya |
| Ogyges | Ogygia | Ogygoptyngidae |
| Ogygoptynx | Ogygoptynx wetmorei | Ogyrini |
| Ogyris | OH | Oh Babe It Ain't No Lie |
| Oh Babe It Ain’t No Lie | Oh Baby! (Things Ain't What They Used To Be) | Oh Baby! (Things Ain’t What They Used To Be) |
| Oh Ban-suk | OH Beom Seok | Oh Beom Seok |
| Oh Beom-seok | Oh Beomseok | Oh boy (Prima Vera) |
| Oh Boy! (album) | Oh Brother Where Art Thou | Oh Brother Where Art Thou? |
| Oh Brother, Where Art Thou | Oh Brother, Where Art Thou? | Oh Carol |
| Oh Carol (Smokie-sang) | Oh Dae-keun | Oh Doctor! |
| Oh Eun-seok | Oh Eun-Seok | Oh Eun-su |
| Oh Gloria Inmarcesible! | Oh Ha-na | Oh Ha-Na |
| Oh Happy Are they Who Obey the Lord | Oh Happy Are they Who the Savior Obey | Oh Happy Are They Who the Savior Obey |
| Oh Happy Day | Oh happy day | Oh holy night |
| Oh How Happy Are They Who the Savior Obey | Oh Hye-ri | Oh Hyon-ho |
| Oh Jae-il | Oh Jae-seok | Oh Jae-suk |
| Oh Jang-eun | Oh Jea-han | Oh Jea-Han |
| Oh Ji-hwan | Oh Ji-young | Oh Jin-hyek |
| Oh Jin-Hyek | Oh Joo-han | Oh Julie |
| Oh Ko-woon | Oh Laura | Oh Lonesome Me |
| Oh Min-jee | Oh Min-Jee | Oh Min-ji |
| Oh Min-Ji | Oh My My | Oh Oh (Puppy Love) |
| Oh Sang Eun | Oh Sang-eun | Oh Sang-Eun |
| Oh Sang-uk | Oh Se-hoon | Oh Seong-ok |
| Oh Seong-Ok | Oh Seung-Hwan | Oh Seung-hwan |
| Oh Seung-shin | Oh Seung-Shin | Oh Sung-Ok |
| Oh Sung-ok | Oh Tahoe | Oh Uganda, Land of Beauty |
| Oh What a Lovely World | Oh Yeah! | Oh Yeah! (album) |
| Oh Yeon-ji | Oh Yeong-Ran | Oh Yeong-ran |
| Oh Yong-ran | Oh Yong-Ran | Oh You're So Silent Jens |
| Oh You’re So Silent Jens | Oh Young Ran | Oh Young-ki |
| Oh Young-Ki | OH Yun Suk | Oh Yun Suk |
| Oh Yun-suk | Oh Yun-Suk | Oh Yunsuk |
| Oh! | Oh! Carol | Oh! Darling |
| Oh! What a Day | Oh, Boy! | Oh, Boy! (1919) |
| Oh, Boy! (sang) | Oh, By the Way | Oh, Johnny! |
| Oh, Lady, Lady | Oh, Lonesome Me | Oh, Pretty Woman |
| Oh, Suzi Q | Oh, var jeg konge! | Oh, What a Knight! |
| Oh, What a Lovely World | Oh, You Women! | OH-58 Kiowa |
| OH-58 Kiowa Warrior | OH-58D Kiowa Warrior | OH-gruppe |
| Oh-la-la | Oh-la-la! | Ohaaki kraftverk |
| Ohad Naharin | Ohain | Ohain (Belgia) |
| Ohalo | Ohanes | Ohangwena (region) |
| Ohashi-demningen | Ohatchee (Alabama) | Ohau Peak |
| Ohře | Ohbayashia | OHC |
| Ohcejohka | Ohey | OHF |
| OHG | Ohgo-Oghene Egwero | Ohi Anthony Omoijuanfo |
| Ohi Kwoeme | Ohi Kwoeme Omoijuanfo | Ohi oljekraftverk |
| Ohi Omoijuanfo | Ohikhuaeme Anthony Omoijuanfo | OHIM |
| Ohio | Ohio (andre betydninger) | Ohio (delstat 19. februar 1803) |
| Ohio (elv) | Ohio (Neil Young-sang) | Ohio Company of Virginia |
| Ohio Country | Ohio County (Indiana) | Ohio County (Kentucky) |
| Ohio County (Vest-Virginia) | Ohio County i Indiana | Ohio County i Kentucky |
| Ohio County i Vest-Virginia | Ohio Gang | Ohio Players |
| Ohio River | Ohio State University | Ohio University |
| Ohio Wesleyan University | Ohio, USA | Ohio-irokesere |
| Ohio-klassen | Ohio-senecaer | Ohioelven |
| Ohiofloden | Ohiolandet | Ohios flagg |
| Ohirathous | OHK | OHL Classic at Maiakoba |
| OHL Classic at Mayakoba | Ohlertidion ohlerti | Ohlsdorf gravlund |
| Ohlsdorfer Friedhof | Ohm | Ohm (enhet) |
| Ohma Electra | Ohmb | Ohms lov |
| OhmyNews | Ohne mich-bevegelsen | Ohnesorg |
| Ohnstad | Ohola og Oholiba | Oholiab |
| Oholibama | Ohomopterus | Ohra Kimishima |
| Ohrdruf | Ohre | Ohrekreis |
| Ohrid | Ohrid erkebispedømme | Ohridavtalen |
| Ohridsjøen | Ohrmazd | Ohrmuzd |
| Ohrvik | OHS | Ohtar |
| Ohthere | Ohwæææh | Oi |
| Oi oljekraftverk | OI Svømming | Oi! |
| Oiana Blanco | Oiapoque | OIBB |
| OIC | Oiceaca | Oiceoptoma |
| Oiceoptoma thoracica | Oicho-Kabu | OICI |
| Oid, Mortales | Oideprosoma | Oides |
| Oideterus | Oidipus | Oidipus i Kolonos |
| Oidomorpha | OIF | Oihus |
| OIIE | OIK | Oikeusministeriö |
| Oikos | OIKOS | Oikos – Økologisk Norge |
| Oikos Oslo | Oikos oslo | Oikos University |
| Oil and gas simulator | Oil and Water | Oilea |
| Oileán Chléire | Oileides | Oilers |
| Oileus | Oilskin | Oin |
| Oingt | Oinner bordet | Oinokhoe |
| Ointroducerad adels förening | Ointroducerad Adels Förening | Oio |
| OIR | OIRA | Oirat |
| Oiratene | Oirater | Oiratisk |
| Oiratkonføderasjonen | Oireachtas | Oirialla |
| OIRT | Oisans | Oise |
| Oise (Département) | Oise (département) | Oise (departement) |
| Oise (elv) | Oisocerus | Oissel |
| Oistus | Oita | Oita (prefektur) |
| Oita Trinita | Oithona atenuata | Oithona atlantica |
| Oithona attentuata | Oithona attenuata | Oithona brevicornis |
| Oithona colcarva | Oithona davisae | Oithona decipiens |
| Oithona fallax | Oithona fragilis | Oithona frigida |
| Oithona hamata | Oithona hebes | Oithona helgolandica |
| Oithona linearis | Oithona longispina | Oithona minuta |
