| Name | Meaning | Gender | Origin |
|---|
| Mark | warlike | Male | Latin |
| Marlon | little hawk | Male | English |
| Marshall | Man who looks after a nobleman's estate, keeper of the horses; steward | Male | |
| Martha | a lady | Female | Aramaic |
| Martin | Warlike person. | Male | Latin |
| Martina | Warlike | Female | Latin |
| Marvin | beautiful sea; good friend | Male | Welsh |
| Mason | Worker in stone. | Male | English |
| Mathilda | battle maiden, strength | Female | English |
| Matilda | battle-mighty | Female | |
| Maura | Great | Female | Scottish |
| Maureen | Bitter | Female | Irish |
| Maverick | One that dissents from the group. | Male | American |
| Maxima | Miracle Worker | Female | Latin |
| Maya | Abbreviation of Amalia: variant of Maia.
| Female | Hebrew |
| Maynard | Firm
| Male | |
| Melissa | bee, honey | Female | Greek |
| Melodie | Song, Melody | Unisex | Greek |
| Melody | song | Female | Greek |
| Melvin | Chief
| Male | English |
| Meredith | great ruler | Female | Welsh |
| Merle | Bright Sea | Male | English |
| Merlin | Character on Chocolate Frog card.
| Male | Welsh |
| Mignon | dainty, petite | Female | |
| Mika | Abbreviation of Michaela:Micaela: Mikaela: Mikayla: Mychaela: Mikella. Feminine of Michael gift from God.
| Female | Japanese |