| Name | Meaning | Gender | Origin |
|---|
| Magda | high tower one who is elevated | Female | |
| Maggie | Abbreviation of Margaret. A pearl.
| Female | English |
| Magic | Possessing qualities that produce baffling effects | Male | Word |
| Magic | Possessing qualities that produce baffling effects | Male | Word |
| Magnum | A large type of wine bottle. | Unisex | |
| Majestic | | Unisex | Hebrew |
| Major | Army or Air Force rank above Captain but below Lieutenant Colonel | Male | Latin |
| Mara | Sorrowful | Female | Hebrew |
| Master | | Unisex | |
| Max | Large spring | Male | English |
| Max | Large spring | Male | English |
| Maxi | Short for maximum - the greatest possible quantity | Female | |
| Mercy | compassion, pity | Female | English |
| Midnight | Intense darkness, the middle of the night | Male | English |
| Mildew | | Unisex | Hebrew |
| Minstrel | | Unisex | Hebrew |
| Mist | | Unisex | |
| Misty | misty.
| Female | English |
| Misty | misty.
| Female | English |
| Mitchell | who is like God | Male | English |
| Molly | Bitter
| Female | English |
| Moonbeam | | Unisex | |
| Moonlight | | Unisex | |
| Moonlight | | Unisex | |
| Moonshadow | | Unisex | |