| Name | Meaning | Gender | Origin |
|---|
| Marzipan | from the Flash cartoon Homestar Runner | Unisex | |
| Mason | Worker in stone. | Male | English |
| Maxie | Greatest | Unisex | Italian |
| Maya | Abbreviation of Amalia: variant of Maia.
| Female | Hebrew |
| Meadow | Meadow | Female | English |
| Meg | Pearl | Female | English |
| Mellow | | Unisex | Hebrew |
| Melody | song | Female | Greek |
| Meringue | | Unisex | Hebrew |
| Merlot | | Male | |
| Mesi | Water | Unisex | Egyptian |
| Mia | Mine | Female | Scandinavian |
| Midas | | Unisex | Hebrew |
| Mika | Abbreviation of Michaela:Micaela: Mikaela: Mikayla: Mychaela: Mikella. Feminine of Michael gift from God.
| Female | Japanese |
| 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 |
| Missy | Informal term for young woman | Female | English |
| Miyu | Beautiful moon
| Female | |
| Molly | Bitter
| Female | English |
| Monroe | mouth of the Roe River; wheelwright | Female | Scottish |
| Monroe | mouth of the Roe River; wheelwright | Female | Scottish |
| Moon Unit | | Unisex | Hebrew |