| Name | Meaning | Gender | Origin |
|---|
| Misty | Misty | Female | English |
| Molly | Uncertain, maybe bitter | Female | Hebrew |
| Moon | Letters | Female | Korean |
| Moonlight | | Unisex | Hebrew |
| Moonstruck | | Unisex | Hebrew |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | English |
| Mopsy | Term of affection, a darling. | Unisex | English |
| Mora | Peacock | Female | Sanskrit |
| Morag | Moor | Female | Latin |
| Morgan | Uncertain, perhaps bright sea | Female | Welsh |
| Moritz | Moor | Unisex | Latin |
| Morris | Moor | Male | Latin |
| 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 |
| Muffy | | Unisex | Hebrew |
| Murphy | Sea warrior | Male | Gaelic |
| Nadia | Hope | Female | Russian |
| Napoleon | Sons of the mist, a race of dwarves | Male | Germanic |
| Nash | At the ash tree | Male | English |
| Ned | Wealth protector | Unisex | English |
| Neil | Champion | Male | Gaelic |
| Nelson | Son of Neal | Male | English |
| Nemo | No one | Male | Latin |
| Neptune | God of the sea | Unisex | Latin |
| Nerissa | Sea sprite | Female | Greek |
| Nero | Stern | Male | Latin |
| Nigel | Champion From The Irish And Scottish Niall. | Male | Gaelic |
| Nikki | Victory of the people | Female | Greek |
| Nimbus | Rain Cloud | Male | English |