| Name | Meaning | Gender | Origin |
|---|
| Neon | | Unisex | |
| Nevaeh | Heaven (Backwards) | Female | American |
| Neville Longbottom | | Unisex | |
| Newt Scamander | | Unisex | |
| Nina | Girl
| Female | Russian |
| Nitro | Short for Nitroglycerin a highly explosive liquid. | Male | |
| Niva | talk, expression | Female | Hebrew |
| Noa | Movement
| Female | Hebrew |
| Norton | From the north farm
| Male | English |
| Nuisance | | Male | Hebrew |
| Olivier | From the olive tree
| Male | |
| Onyx | A gemstone with bands of different colours. | Male | |
| Opal | Australian gemstone of remarkable colours, usually red, blue or green | Female | Sanskrit |
| Opal | Australian gemstone of remarkable colours, usually red, blue or green | Female | Sanskrit |
| Opus | | Male | Hebrew |
| Orchid | | Female | |
| Orson | Little bear
| Male | Latin |
| Osman | Godly protection.
| Male | Arabic |
| Ozone | | Male | Hebrew |
| Ozzi | | Unisex | |
| Ozzie | Strong
| Male | Short |
| Pacific | tranquil | Male | |
| Padgett | Attendant
| Male | |
| Paisley | church, cemetery | Female | Scottish |
| Palben | Blond
| Male | Basque |