| Name | Meaning | Gender | Origin |
|---|
| Noel | Christmas | Male | English |
| Nona | Ninth | Male | Latin |
| Norton | North settlement, north enclosure | Male | English |
| Nugget | As in Chicken | Unisex | English |
| Nutmeg | | Unisex | Hebrew |
| Oakley | From the oak meadow | Male | English |
| Obie | O.B. | Unisex | English |
| Odie | Woad hill | Unisex | English |
| 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 |
| Otis | One who hears well | Male | Greek |
| Otto | Wealth | Male | German |
| Oz | Divine | Male | English |
| Pablo | Small | Male | Latin |
| Paco | From France | Male | Latin |
| Paddy | Patrician | Male | Latin |
| Panda | A bear like Chinese mammal, with distinct black and white markings | Unisex | English |
| Panther | A black leopard | Unisex | English |
| Parker | Gamekeeper of a park | Male | English |
| Pasha | Passover | Unisex | Greek |
| Patches | | Unisex | Hebrew |
| Peaches | Red, yellow skinned fleshy fruit | Unisex | English |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | English |
| Pedro | Stone | Male | Greek |
| Pepe | He will enlarge | Unisex | Hebrew |
| Peppy | | Unisex | Hebrew |
| Pepsi | Brand of cola soft drink. | Unisex | English |