| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Oprah | O-prə (English) | Various | ||
| Orabela | o-rah-BE-lah | Esperanto | ||
| Oral | - | English (Rare) | ||
| Oralee | - | English (Rare) | ||
| Oralie | - | English (Rare) | ||
| Orazio | - | Italian | ||
| OrbÁN | - | Hungarian | ||
| Orfeo | - | Italian, Spanish | ||
| Oria | - | Italian | ||
| Oriana | o-RYAH-nah | Italian | ||
| Origenes | - | Ancient Greek | ||
| Orinda | - | English (Rare) | ||
| Orinthia | - | Literature | ||
| Oriol | - | Catalan | ||
| Orla (2) | - | Danish |