| Name | Meaning | Gender | Origin |
|---|
| Molly | Uncertain, maybe bitter | Female | Hebrew |
| Moon | Letters | Female | Korean |
| Moondancer | | Unisex | Hebrew |
| Mopsy | Term of affection, a darling. | Unisex | English |
| Mouse | A small rodent with a long tail and small rounded ears. | Unisex | English |
| Moxie | Ability to face difficulty with courage. | Unisex | English |
| Muffin | A small cup shaped cake | Unisex | English |
| Munchkin | A very small elflike person. | Unisex | English |
| Myrtle | Myrtle | Female | English |
| Mystic | | Unisex | Hebrew |
| Nadia | Hope | Female | Russian |
| Nala | Loved | Female | African |
| Nana | Grace | Unisex | Hebrew |
| Narcissus | Sleep | Male | Greek |
| Natalie | Christ's birthday | Female | Italian |
| Nell | Abbreviation Of Eleanor Shining Light. | Female | English |
| Nellie | Abbreviation Of Eleanor Shining Light. | Female | English |
| Nermal | | Unisex | Hebrew |
| Nessa | From The Headland | Female | English |
| Nibbles | | Unisex | Hebrew |
| Nikita | Unconquered, unconquerable | Female | Greek |
| Nikki | Victory of the people | Female | Greek |
| Nina | Strong | Female | Latin |
| Norma | Thor mind, Thor courage | Female | Gaelic |
| Nutmeg | | Unisex | Hebrew |
| Octavia | Eighth | Female | Latin |
| Odessa | Place name | Female | Ukrainian |
| Olive | Olive | Female | English |
| Olivia | Elf army | Female | English |
| Opal | Jewel, gem | Female | Sanskrit |