| Name | Meaning | Gender | Origin |
|---|
| Newton | new town | Male | English |
| Nibbles | | Unisex | |
| Nickle | | Unisex | |
| Nigel | Black haired one. | Male | Irish |
| Nikolai | Greek, people of victory | Male | Russian |
| Nina | Girl
| Female | Russian |
| Nini | | Unisex | |
| Ninja | | Male | |
| Nirvana | deep silence, ultimate bliss | Female | Sanskrit |
| Noel | Christmas
| Male | |
| Nola | Noble or Famous | Female | Gaelic |
| Noodle | A narrow ribbon-like strip of dough | Unisex | |
| Nook | | Unisex | Hebrew |
| Nora | Abbreviation of Eleanora light and Honora honor.
| Female | Irish |
| Norton | From the north farm
| Male | English |
| Nova | A star that suddenly becomes much brighter. | Female | Latin |
| Nugget | as in Chicken | Unisex | |
| Obie | O.B. | Unisex | |
| Obsidian | | Unisex | |
| Olive | kind one; olive tree, peace. Symbol of peace. A small oval fruit. | Female | English |
| Oliver | The olive tree. The biblical olive tree symbolizes fruitfulness and beauty and dignity. Extending an olive branch signifies an offer of peace.
| Male | Latin |
| Ollie | Latin, olive tree | Male | English |
| OMalley | | Male | Hebrew |
| Omar | first son, disciple; gifted speaker; famous | Male | Arabic |
| Onyx | A gemstone with bands of different colours. | Male | |