| Name | Meaning | Details |
|---|---|---|
| Norris | From The North | View Details |
| Norton | From The Town In The North | View Details |
| Norwood | From The North Woods | View Details |
| November | Born In November | View Details |
| Nubia | From Nubia | View Details |
| Oakley | From The Oak Tree Field | View Details |
| Ocean | Sea | View Details |
| Oceana | From The Sea | View Details |
| Oceane | Sea | View Details |
| October | Born In October | View Details |
| Odell | From The Woad Hill | View Details |
| Ogden | From The Oak Valley | View Details |
| Oihane | From The Forest | View Details |
| Okoth | Born When It Was Raining | View Details |
| Olive | Olive Or From The Olive Tree | View Details |