| Name | Meaning | Gender | Origin |
|---|
| Morgan | Uncertain, perhaps bright sea | Female | Welsh |
| Morgana | Uncertain, perhaps bright sea | Female | Welsh |
| Mortimer | Dead sea | Male | French |
| Muffin | A small cup shaped cake | Unisex | English |
| Munchkin | A very small elflike person. | Unisex | English |
| Nadia | Hope | Female | Russian |
| Nakeisha | Her Life | Female | African |
| Nalani | The heavens | Female | Hawaiian |
| Nanette | Grace | Female | Hebrew |
| Naomi | Beautiful, pleasant, delightful | Female | Hebrew |
| Nash | At the ash tree | Male | English |
| Natalia | Christ's birthday | Female | Italian |
| Natalie | Christ's birthday | Female | Italian |
| Natasha | (Christ's) birthday | Female | Latin |
| Nathanial | Gift of god | Male | Hebrew |
| Neal | Champion | Male | Gaelic |
| Nero | Stern | Male | Latin |
| Nibbles | | Unisex | Hebrew |
| Nicholas | Victory of the people | Male | Greek |
| Nicky | Victory of the people | Unisex | Greek |
| Nicole | Victory of the people | Female | Greek |
| Nipper | A small boy | Unisex | English |
| Nish | | Unisex | Hebrew |
| Noah | Rest | Male | Hebrew |
| Noel | Christmas | Male | English |
| Noelle | Day of birth | Unisex | Latin |
| Nolan | Chariot-fighter, champion | Male | Gaelic |
| Nyx | Night | Female | Greek |
| Oakley | From the oak meadow | Male | English |
| Ocean | Ocean | Female | Greek |