| Name | Meaning | Gender | Origin |
|---|
| Margaret | Pearl | Female | Greek |
| Marie | Bitter | Female | Hebrew |
| Marigold | Golden Mary | Female | English |
| Marilyn | Uncertain, maybe bitter | Female | Hebrew |
| Marisol | Uncertain, maybe bitter | Female | Hebrew |
| Marissa | Of the sea | Female | Hebrew |
| Marius | From the god Mars | Male | Latin |
| Marley | Pleasant wood | Female | English |
| Marly | From The March Meadow | Female | English |
| Martin | From the god Mars | Male | Latin |
| Martina | From the god Mars | Female | Latin |
| Mason | Bricklayer | Male | French |
| Matilda | Powerful battler | Female | Germanic |
| Max | Little Maximus | Male | Latin |
| Maxine | Little Maximus | Female | Latin |
| Maya | Uncertain, perhaps mother or great one | Female | Greek |
| Megan | Pearl | Female | Greek |
| Melanie | Black | Female | Greek |
| Melissa | Honey-bee | Female | Greek |
| Mercy | Compassion | Female | English |
| Merlin | Sea fort | Male | Welsh |
| Micheal | Form Of Michael Who Is Like God? | Unisex | English |
| Midnight | Intense darkness, the middle of the night | Unisex | English |
| Millicent | Strong work | Female | Germanic |
| Millie | Labour | Female | Germanic |
| Mirabelle | Lovely | Female | Latin |
| Miranda | She who must be admired | Female | Latin |
| Molly | Uncertain, maybe bitter | Female | Hebrew |
| Moon | Letters | Female | Korean |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | English |