| Name | Meaning | Gender | Origin |
|---|
| Matilda | Powerful battler | Female | Germanic |
| Maura | Moor | Female | Latin |
| Maureen | Uncertain, maybe bitter | Female | Hebrew |
| Maurizio | Moor | Male | Latin |
| Mauro | Moor | Male | Latin |
| Maverick | Dissenter | Unisex | English |
| Maxima | The greatest | Female | Latin |
| Maynard | Mighty and brave | Male | Germanic |
| Meadow | A meadow | Female | English |
| Melantha | Dark flower | Female | Greek |
| Melchior | King city | Male | Persian |
| Melia | Rival | Female | Latin |
| Melissa | Honey-bee | Female | Greek |
| Melodie | Melody | Female | English |
| Melody | Melody | Female | Greek |
| Melvin | Uncertain, possibly bad town | Male | English |
| Meredith | Great lord | Female | Welsh |
| Meri | Mirthful: Joyous. Also An Abbreviation Of Meredith. | Unisex | English |
| Merle | Contracted form of Meriel | Female | English |
| Merlin | Sea fort | Male | Welsh |
| Midnight | Intense darkness, the middle of the night | Unisex | English |
| Mignon | Cute | Female | French |
| Mika | Beautiful smell | Female | Japanese |
| Mikasi | Coyote | Male | Native American |
| Miles | Uncertain, perhaps peaceful | Male | Germanic |
| Miller | Grinder of grain | Male | English |
| Minerva | Mind | Female | Latin |
| Mirabel | Lovely | Female | Latin |
| Misty | Misty | Female | English |
| Mita | Friend | Female | Sanskrit |