| Name | Meaning | Gender | Origin |
|---|
| Marmalade | | Unisex | |
| Marshmallow | A soft spongy sweet confectionery. Also a timid person. | Unisex | |
| Marzipan | from the Flash cartoon Homestar Runner | Unisex | |
| Mason | Worker in stone. | Male | English |
| Maxie | Greatest | Unisex | Italian |
| Mellow | | Unisex | Hebrew |
| Meringue | | Unisex | Hebrew |
| Merlot | | Male | |
| Mesi | Water | Unisex | Egyptian |
| Midas | | Unisex | Hebrew |
| Milkshake | | Male | |
| Miller | one who mills. Brand of American beer | Male | English |
| Milly | Highborn Power | Unisex | English |
| Milly | Highborn Power | Unisex | English |
| Misha | Variant of Michael.
| Male | Russian |
| Moon Unit | | Unisex | Hebrew |
| Moonshine | Moonlight or illegally distilled whiskey. | Unisex | |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | |
| Morning Glory | | Unisex | Hebrew |
| Muffin | A small cup shaped cake | Unisex | |
| Mustard | Seeds ground into paste and used as a spicy condiment | Unisex | |
| Nacho | Small triangles of tortilla topped with cheese. | Male | Word |
| Napoleon | Hound Dog from the AristoCats
| Male | Greek |
| Nemo | from the glen | Male | Greek |
| Nevada | Snow-clad. A western USA state.
| Male | Spanish |