| Name | Meaning | Gender | Origin |
|---|
| Mr. | | Unisex | |
| Napoleon | Hound Dog from the AristoCats
| Male | Greek |
| Nazareth | | Male | |
| Nemesis | | Unisex | Hebrew |
| Nermal | | Unisex | |
| Neville | from the new farmland | Male | |
| Nigel | Black haired one. | Male | Irish |
| Nugget | as in Chicken | Unisex | |
| Octavius | eighth | Male | Latin |
| Olaf | ancestor's relic | Male | Norse |
| Omar | first son, disciple; gifted speaker; famous | Male | Arabic |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Male | |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Male | |
| Orion | Son of Fire
| Male | Greek |
| Orlando | Famous land
| Male | Italian |
| Orson | Little bear
| Male | Latin |
| Orville | Gold town.
| Male | |
| Otis | Wealthy.
| Male | |
| Otto | Born eighth or wealthy
| Male | |
| Pabst | | Unisex | Hebrew |
| Panda | A bear like Chinese mammal, with distinct black and white markings | Male | |
| Pascal | born at Easter | Male | |
| Paws | | Male | |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | |
| Pebbles | after the character in 'The Flintstones' cartoons | Male | |