| Name | Meaning | Details |
|---|---|---|
| Ondine | Wave Of Water | View Details |
| Ondrea | Manly | View Details |
| Onika | Who Is Greater Than God? | View Details |
| Onslow | Hill Of The Passionate One | View Details |
| Onyekachukwu | Who Is Greater Than God? | View Details |
| Oorjita | Powerful Woman | View Details |
| Oormi | Flow Of Emotions | View Details |
| Opaque | Not Transparent | View Details |
| Oralia | Created Name | View Details |
| Orchid | Flowering Plant | View Details |
| Orea | Form Of Aurea | View Details |
| Oria | Form Of Aurea | View Details |
| Orlando | From Glorious Land | View Details |
| Ormand | Descendent Of The Red One | View Details |
| Ormanda | Descendent Of The Red One | View Details |