| Name | Meaning | Gender | Origin |
|---|
| Nate | Hebrew, given | Male | English |
| Nathan | given | Male | Hebrew |
| Nazilla | Cute | Unisex | Persian |
| Nero | stern | Male | Latin |
| Nibbles | | Unisex | |
| Nicholas | victorious people | Male | Greek |
| Nicky | Abbreviation of Nicholas. Mythological Nike was Greek goddess of victory and root origin of Nicholas.
| Female | |
| Nicole | Victory of the people
| Female | |
| Nipper | A small boy | Unisex | |
| Noah | Comfort
| Male | Hebrew |
| Noel | Christmas
| Male | |
| Noelle | Born on Christmas | Female | |
| Nolan | Noble
| Male | Irish |
| Nox | latin for night | Unisex | |
| Nyx | Greek goddess of night | Female | Greek |
| Oakley | from the oak meadow | Male | English |
| Ocean | | Male | |
| October | eighth | Female | Latin |
| Oksana | glory be to God | Female | Russian |
| 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 |
| Olivia | Olive
| Female | Latin |
| Ollie | Latin, olive tree | Male | English |
| Onyx | A gemstone with bands of different colours. | Male | |
| Opal | Australian gemstone of remarkable colours, usually red, blue or green | Female | Sanskrit |