| Name | Meaning | Details |
|---|---|---|
| Onofre | Peace Warrior | View Details |
| Ontibile | God Is Watching Over Me | View Details |
| Onufry | Grazing Donkey | View Details |
| Onur | Honor | View Details |
| Ooko | Born Outside The Hospital | View Details |
| Ooyu | Rainbow | View Details |
| Orah | From Ora. | View Details |
| Orane | Rising | View Details |
| Orchid | Flowering Plant | View Details |
| Orde | Point | View Details |
| Orea | Form Of Aurea | View Details |
| Oren | Jerusalem Pine | View Details |
| Orestes | Mountain Dweller | View Details |
| Oria | Form Of Aurea | View Details |
| Orien | The Orient | View Details |