| otherwise | senão |
| otherwisecult | diferentemente |
| otherworldly | desprendido |
| Othmarsingen | Othmarsingen |
| Othniel Ben Kenaz | Otniel |
| Othniel Charles Marsh | Othniel Charles Marsh |
| Othnielia | Othnielia |
| Otho | Otão |
| otiose | preguiçoso |
| Otis Redding | Otis Redding |
| Otl Aicher | Otl Aicher |
| Otocephaly | Octocefalia |
| Otocinclus | Otocinclus |
| Otok | Ilha |
| Otolith | Otólito |
| Otomat | Teseu |
| Otomi | Otomis |
| Otomi people | Otomis |
| otorhinolaryngologist | otorrino |
| Otoskopy | Otoscópio |
| Otranto | Otranto |
| Otrera | Otréra |
| Otsego County | Condado de Otsego |
| Ottaviano Nonni | Ottaviano Nonni |
| Ottavio Bottecchia | Ottavio Bottecchia |
| Ottawa | Otawa |
| Ottawa County | Condado de Ottawa |
| Ottawa Macdonald-Cartier International Airport | Aeroporto Internacional Ottawa Macdonald-Cartier |
| Ottawa Mcdonald-Cartier International Airport | Aeroporto Internacional Ottawa Macdonald-Cartier |
| Ottawa River | Rio Ottawa |
| Ottawa Senators | Ottawa Senators |
| Ottawa Treaty | Tratado de Ottawa |
| Ottenhofen | Ottenhofen |
| Ottenhöfen | Ottenhöfen |
| Ottensoos | Ottensoos |
| otter | lontra |
| Ottersweier | Ottersweier |
| Otterup municipality | Otterup |
| Otto | Oto da Baviera |
| Otto Binswanger | Otto Ludwig Binswanger |
| Otto Braun | Otto Braun |
| Otto Bütschli | Johann Adam Otto Bütschli |
| Otto Diels | Otto Paul Hermann Diels |
| Otto Dix | Otto Dix |
| Otto Finsch | Otto Finsch |
| Otto Friedrich Müller | Otto Friedrich Müller |
| Otto Fritz Meyerhof | Otto Fritz Meyerhof |
| Otto Hahn | Otto Hahn |
| Otto Heinrich Warburg | Otto Heinrich Warburg |
| Otto I | Sacro Imperador Romano-Germânico |
| Otto I of Guelders | Oto I da Grécia |
| Otto I of Nassau | Oto I da Grécia |
| Otto Jespersen | Otto Jespersen |
| Otto Kuntze | Carl Ernst Otto Kuntze |
| Otto Lilienthal | Otto Lilienthal |
| Otto Ludwig | Otto Ludwig |
| Otto Mann | Otto Mann |
| Otto Nordenskiöld | Otto Nordenskjöld |
| Otto of Bavaria | Oto da Baviera |
| Otto of Greece | Oto I da Grécia |
| Otto of Savoy | Oto da Baviera |
| Otto Preminger | Otto Preminger |
| Otto Skorzeny | Otto Skorzeny |
| Otto Stern | Otto Stern |
| Otto von Bismarck | Otto von Bismarck |
| Otto von Guericke | Otto von Guericke |
| Otto von Habsburg | Otto de Habsburgo |
| Otto Wallach | Otto Wallach |
| Otto Wilhelm Hermann von Abich | Otto Wilhelm Hermann von Abich |
| Otto Wilhelm von Struve | Otto Wilhelm von Struve |
| Ottobrunn | Ottobrunn |
| Ottokar II of Bohemia | Ottokar II da Boêmia |
| ottoman | divã |
| Ottoman Dynasty | Dinastia Otomana |
| Ottoman Empire | Império Otomano |
| Ottoman Greece | Grécia |
| Ottonian art | Arte otoniana |
| Ottonian Renaissance | Arte otoniana |
| Ottorino Respighi | Ottorino Respighi |
| Otumba | Otumba |
| Otuzco Province | Província de Otuzco |
| Otxandio | Otxandio |
| Otzing | Otzing |
| Ouabain | Ouabaína |
| Ouadane | Ouadane |
| Ouagadougou | Ouagadougou |
| Ouargla | Ouargla |
| OUB Centre | OUB Centre |
| oubliette | calabouço |
| Oubritenga | Oubritenga |
| ouch | ai |
| Oud | Ud |
| Oudalan | Oudalan |
| Oudenaarde | Oudenaarde |
| Oudomxai Province | Subdivisões do Laos |
| Oudomxay Province | Subdivisões do Laos |
| Oued Ed-Dahab-Lagouira | Oued Ed-Dahab - Lagouira |
| Ouessant | Ouessant |
| Ouest Department | Ouest |
| ought to | dever |
| Ouidah | Fortaleza de São João Baptista de Ajudá |
| Oulens-sous-Echallens | Oulens-sous-Echallens |
| Oulens-sur-Lucens | Oulens-sur-Lucens |
| Oulipo | Oulipo |
| Oulu | Oulu |
| Oulu Province | Oulu |
| Oulu railway station | Oulu |
| Oulujärvi | Oulu |
| Oum el-Bouaghi | Oum el Bouaghi |
| Oum el-Bouaghi Province | Oum el Bouaghi |
| ounce | onça |
| ouncele | onça (peso) |
| our | nossa |
| Our Common Future | Relatório Brundtland |
| Our Lady | Nossa Senhora |
| Our Lady of Aparecida | Nossa Senhora da Conceição Aparecida |
| Our Lady of Fatima | Nossa Senhora de Fátima |
| Our Lady of Guadalupe | Nossa Senhora de Guadalupe |
| Our Lady of Meritxell | Santuário de Meritxell |
| Our Lady of Mount Carmel | Nossa Senhora do Carmo |
| Our Lady of Sorrows | Nossa Senhora das Dores |
| Our Lady of the Rosary | Nossa Senhora do Rosário |
| Our Land | Hino nacional da Finlândia |
| Our Lips Are Sealed | Our Lips Are Sealed |
| Our Lord | Nosso Senhorpé |
| Our Love to Admire | Our Love To Admire |
| Our Man in Havana | Nosso Homem em Havana |
| Our Mother of Perpetual Help | Nossa Senhora do Perpétuo Socorro |
| Our Worlds at War | Our Worlds at War |
| Ouran High School Host Club | Ouran High School Host Club |
| Ouranosaurus | Ouranossauro |
| Ourea | Ourea |
| Ourense | Ourense |
| Ourique | Ourique |
| Ouro Preto | Ouro Preto |
| Ouroboros | Ouroboros |
| ours | nossa |
| Ours-Pierre-Armand Petit-Dufrénoy | Pierre Armand Dufrenoy |
| ourselves | nos |
| ourtle | nossoi |
| Ousmane Sembène | Ousmane Sembène |
| Oussouye Department | Oussouye |
| oust | destronar |
| Oustspread | Adastado |
| out | fora |
| out for | propenso a |
| Out for a Kill | The Punisher |
| out for power | autoritário |
| out market | muito caro |
| out marketion of place | fora de mercadoo |
| out of | por |
