| Name | Meaning | Details |
|---|---|---|
| Nyakio | Hard Working | View Details |
| Nyeri | Unknown Meaning | View Details |
| Nyrie | Unknown Meaning | View Details |
| Oakes | Dweller By The Oak Tree | View Details |
| Oakley | From The Oak Tree Field | View Details |
| Oba | King | View Details |
| Obedience | The Act Of Obeying | View Details |
| Obioma | Kind Hearted | View Details |
| Oceana | From The Sea | View Details |
| Oceanus | Of The Ocean | View Details |
| Ochoa | The Wolf | View Details |
| Ochola | Father Died While Mother Was Pregnant | View Details |
| October | Born In October | View Details |
| Odahingum | Ripple In The Water | View Details |
| Odalys | Invented Name | View Details |