| Name | Meaning | Gender | Origin |
|---|
| Miracle | Wonder | Unisex | English |
| Missy | Bee | Female | Greek |
| Misty | Misty | Female | English |
| Mocha | Coffee of high quality. | Unisex | English |
| Moe | Moor | Male | Latin |
| Mojo | Good luck charm. | Unisex | English |
| Molly | Uncertain, maybe bitter | Female | Hebrew |
| Monster | A creature of frightening appearance | Unisex | English |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | English |
| Morgan | Uncertain, perhaps bright sea | Female | Welsh |
| Muffin | A small cup shaped cake | Unisex | English |
| Murphy | Sea warrior | Male | Gaelic |
| Mya | Uncertain, perhaps mother or great one | Female | Greek |
| Nala | Loved | Female | African |
| Neon | | Unisex | Hebrew |
| Nike | Victory | Female | Greek |
| Nikita | Unconquered, unconquerable | Female | Greek |
| Nikki | Victory of the people | Female | Greek |
| Nimue | The Lady Of The Lake | Female | Welsh |
| Norm | Thor mind, Thor courage | Male | Gaelic |
| Nugget | As in Chicken | Unisex | English |
| Oliver | Elf army | Male | French |
| Onyx | A gemstone with bands of different colours. | Unisex | English |
| Opal | Jewel, gem | Female | Sanskrit |
| Ophelia | Help | Female | Greek |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Unisex | English |
| Oscar | Divine spear | Male | English |
| Otis | One who hears well | Male | Greek |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | English |
| Pebbles | After the character in 'The Flintstones' cartoons | Female | English |