| Name | Meaning | Gender | Origin |
|---|
| Marlee | Contraction of Maria Magdalene | Female | German |
| Martin | From the god Mars | Male | Latin |
| Marty | From the god Mars | Male | Latin |
| Maverick | Dissenter | Unisex | English |
| Max | Little Maximus | Male | Latin |
| Maya | Uncertain, perhaps mother or great one | Female | Greek |
| Meadow | A meadow | Female | English |
| Meg | Pearl | Female | Greek |
| Midnight | Intense darkness, the middle of the night | Unisex | English |
| Mika | Beautiful smell | Female | Japanese |
| Miki | Beautiful story | Female | Japanese |
| Minka | Strong, Resolute | Female | German |
| Miracle | Wonder | Unisex | English |
| Mocha | Coffee of high quality. | Unisex | English |
| Mojo | Good luck charm. | Unisex | English |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | English |
| Moses | Drawn out of the water | Male | Hebrew |
| Mozart | | Unisex | Hebrew |
| Mystic | | Unisex | Hebrew |
| Nala | Loved | Female | African |
| Nanook | Polar bear | Unisex | Native American |
| Natalie | Christ's birthday | Female | Italian |
| Neo | New | Male | English |
| Neptune | God of the sea | Unisex | Latin |
| Newt | New settlement, new enclosure | Unisex | English |
| Niki | Victory of the people | Female | Greek |
| Nikita | Unconquered, unconquerable | Female | Greek |
| Nikko | Victory of the people | Male | Greek |
| Nilla | Glorious | Unisex | English |
| Nina | Strong | Female | Latin |