| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Odette | o-DET | French | ||
| Odila | - | Ancient Germanic | ||
| Odile | - | French | ||
| Odilia | - | Ancient Germanic | ||
| Odilo | - | Ancient Germanic | ||
| Odilon | - | French, Portuguese | ||
| Odin | O-din | Norse Mythology, English (Modern) | ||
| Odo | - | Ancient Germanic | ||
| Odoacer | o-do-AY-sər (English) | Ancient Germanic | ||
| Odovacar | o-do-VAY-kər (English) | Ancient Germanic | ||
| Ogden | AWG-dən | English | ||
| Ohannes | - | Armenian | ||
| Oli | AHL-ee | English | ||
| Olive | AHL-iv | English | ||
| Oliver | AHL-ə-vər (English), AW-lee-ver (German), O-lee-ver (Finnish) | English, German, Swedish, Norwegian, Danish, Finnish, Estonian, Serbian, Croatian, Macedonian, Czech |