| Name | Meaning | Gender | Origin |
|---|
| Murphy | Sea warrior | Male | Gaelic |
| Nefertiti | The beautiful woman has come | Unisex | Ancient Egyptian |
| Nelson | Son of Neal | Male | English |
| Nero | Stern | Male | Latin |
| Nigel | Champion From The Irish And Scottish Niall. | Male | Gaelic |
| Niles | People's Victory | Male | Gaelic |
| Nimbus | Rain Cloud | Male | English |
| Ninja | | Unisex | Hebrew |
| Nugget | As in Chicken | Unisex | English |
| Nutmeg | | Unisex | Hebrew |
| Oberon | Noble bear | Unisex | German |
| Obsidian | | Unisex | Hebrew |
| Oden | | Unisex | Hebrew |
| Ollie | Elf army | Male | French |
| Onyx | A gemstone with bands of different colours. | Unisex | English |
| Orlando | Famous country | Male | Germanic |
| Oscar | Divine spear | Male | English |
| Osiris | Uncertain, perhaps throne of the eye | Unisex | Ancient Egyptian |
| Owen | Well born, yew born | Male | Gaelic |
| Paco | From France | Male | Latin |
| Panda | A bear like Chinese mammal, with distinct black and white markings | Unisex | English |
| Paws | | Unisex | Hebrew |
| Pax | Peace | Unisex | Latin |
| Pierce | Stone | Male | Greek |
| Piglet | | Unisex | Hebrew |
| Pip | Lover of horses | Unisex | Greek |
| Pippin | Foreigner, stranger | Unisex | Latin |
| Pixel | | Unisex | Hebrew |
| Pj | | Unisex | Hebrew |
| Pluto | Wealth, riches | Unisex | Greek |