| Name | Meaning | Details |
|---|---|---|
| Oakley | From The Oak Tree Field | View Details |
| Obedience | The Act Of Obeying | 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 |
| Odell | From The Woad Hill | View Details |
| Ofek | Horizon | View Details |
| Ogden | From The Oak Valley | View Details |
| Ogen | Anchor | View Details |
| Oihane | From The Forest | View Details |
| Okalani | Of The Heavens | View Details |
| Okoth | Born When It Was Raining | View Details |