| Name | Meaning | Gender | Origin |
|---|
| Newt | New settlement, new enclosure | Unisex | English |
| Newton | New settlement, new enclosure | Male | English |
| Nibbler | | Unisex | Hebrew |
| Nibbles | | Unisex | Hebrew |
| Nicky | Victory of the people | Unisex | Greek |
| Niko | Victory of the people | Male | Greek |
| Niles | People's Victory | Male | Gaelic |
| Ninja | | Unisex | Hebrew |
| Nipper | A small boy | Unisex | English |
| Noah | Rest | Male | Hebrew |
| Oliver | Elf army | Male | French |
| Ollie | Elf army | Male | French |
| Onyx | A gemstone with bands of different colours. | Unisex | English |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Unisex | English |
| Oscar | Divine spear | Male | English |
| Othello | Wealth | Male | German |
| Otis | One who hears well | Male | Greek |
| Owen | Well born, yew born | Male | Gaelic |
| Pablo | Small | Male | Latin |
| Pace | Peace | Unisex | English |
| Paco | From France | Male | Latin |
| Paisley | Church, cemetery | Unisex | English |
| Pancho | From France | Male | Latin |
| Panda | A bear like Chinese mammal, with distinct black and white markings | Unisex | English |
| Panther | A black leopard | Unisex | English |
| Pasha | Passover | Unisex | Greek |
| Patches | | Unisex | Hebrew |
| Paws | | Unisex | Hebrew |
| Payton | Settlement of PÅ“ga | Male | English |
| Peaches | Red, yellow skinned fleshy fruit | Unisex | English |