| Odd-toed ungulates | Onevenhoevigen |
| Odda | Odda |
| Oddar Meancheay Province | Khett Oddar Meancheay |
| Odder municipality | Odder |
| Odderade | Odderade |
| Oddfellows | Independent Order of Odd Fellows |
| oddity | zonderling |
| oddly | vreemd |
| oddness | ongewoonheid |
| odds | waarschijnlijkheid |
| Odds ratio | Odds ratio |
| ode | ode |
| Ode to Joy | Ode an die Freude |
| Oded Fehr | Oded Fehr |
| Odelzhausen | Odelzhausen |
| Odense | Odense |
| Odense Boldklub | Odense BK |
| Odense Municipality | Odense |
| Odenthal | Odenthal |
| Odenwald | Odenwald |
| Odenwaldkreis | Odenwaldkreis |
| Odeon of Herodes Atticus | Odeion van Herodes Atticus |
| Odeon Records | Odeon Records |
| Oder | Oder |
| Oder River | Oder |
| Oder-Havel Canal | Oder-Havel-kanaal |
| Oder-Neisse line | Oder-Neissegrens |
| Oder-Spree | Oder-Spree |
| Oderaue | Oderaue |
| Oderberg | Oderberg |
| Odernheim am Glan | Odernheim am Glan |
| Odessa | Odessa |
| Odessa Oblast | Oblast Odessa |
| Odie | Odie |
| Odile | Odilia |
| Odile Defraye | Odiel Defraeye |
| Odilo of Bavaria | Odilo van Beieren |
| Odilon Redon | Odilon Redon |
| Odin | Odin |
| odious | weerzinwekkend |
| Odisheim | Odisheim |
| Odo | Odo |
| Odo of Cambrai | Odo van Doornik |
| Odo of Cluny | Odo van Cluny |
| Odo of France | Odo I van Frankrijk |
| Odo of Gascony | Otto van Aquitanië |
| Odo of Toulouse | Odo van Toulouse |
| Odo the Great | Odo van Aquitanië |
| Odoacars | Avaren |
| Odoacer | Odoaker |
| Odoardo Cardinal Farnese | Odoardo Farnese |
| Odoardo Farnese | Odoardo Farnese |
| Odoardo II Farnese | Odoardo Farnese |
| Odolanów | Odolanów |
| odometer | kilometerteller |
| Odon River | Odon |
| Odonata | Libellen |
| Odontaspis ferox | Kleintandzandtijgerhaai |
| Odontites | Helmogentroost |
| Odontoblast | Odontoblast |
