| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Odilie | o-DEE-lee-ə | German (Archaic) | ||
| Odilo | - | Ancient Germanic | ||
| Odo | - | Ancient Germanic | ||
| Odoacer | o-do-AY-sər (English) | Ancient Germanic | ||
| Odovacar | o-do-VAY-kər (English) | Ancient Germanic | ||
| Odtsetseg | - | Mongolian | ||
| Oedipus | ED-i-pəs (English), EED-i-pəs (English) | Greek Mythology (Latinized) | ||
| Oenone | - | Greek Mythology (Latinized) | ||
| Ofelia | o-FE-lyah | Spanish, Italian | ||
| Ofir | - | Hebrew, Biblical Hebrew | ||
| 'Ofrah | - | Biblical Hebrew | ||
| Ogechi | - | Western African, Igbo | ||
| Ogechukwukama | - | Western African, Igbo | ||
| Oghenekaro | - | Western African, Urhobo | ||
| Oghenekevwe | - | Western African, Urhobo |