| Name | Meaning | Gender | Origin |
|---|
| Mana | A supernatural force dwelling in a person or object. | Unisex | |
| Mandisa | sweet | Unisex | |
| Marcel | little hammer | Male | |
| Mario | bitter, king-ruler | Male | Italian |
| Mark | warlike | Male | Latin |
| Marlon | little hawk | Male | English |
| Marshall | Man who looks after a nobleman's estate, keeper of the horses; steward | Male | |
| Martin | Warlike person. | Male | Latin |
| Marvin | beautiful sea; good friend | Male | Welsh |
| Mason | Worker in stone. | Male | English |
| Maverick | One that dissents from the group. | Male | American |
| Maynard | Firm
| Male | |
| Melodie | Song, Melody | Unisex | Greek |
| Melvin | Chief
| Male | English |
| Merle | Bright Sea | Male | English |
| Merlin | Character on Chocolate Frog card.
| Male | Welsh |
| Miles | of smiles | Male | Latin |
| Miller | one who mills. Brand of American beer | Male | English |
| Milly | Highborn Power | Unisex | English |
| Milly | Highborn Power | Unisex | English |
| Mischa | Who Is Like G-D | Male | Hebrew |
| Mishra | | Unisex | Hebrew |
| Montague | steep mountain | Male | |
| Montego | Mountainous | Male | Spanish |
| Moonstone | | Unisex | |