| Name | Meaning | Gender | Origin |
| Macha | Plain | Female | English |
| Madeleine | From Magdala | Female | Hebrew |
| Mallorie | Luckless | Female | French |
| Mallory | Luckless | Female | French |
| Malory | Luckless | Unisex | French |
| Manon | Bitter | Female | Hebrew |
| Mara | Bitter | Female | Hebrew |
| March | Boundary | Unisex | French |
| Margaux | Pearl | Female | Greek |
| Marianne | Combination of Marie and Anne | Female | French |
| Marie | Bitter | Female | Hebrew |
| Mariette | Uncertain, maybe bitter | Female | Hebrew |
| Mathilda | Powerful battler | Female | Germanic |
| Maya | Uncertain, perhaps mother or great one | Female | Greek |
| Meeko | | Unisex | Hebrew |
| Melissa | Honey-bee | Female | Greek |
| Melodie | Melody | Female | English |
| Merle | Contracted form of Meriel | Female | English |
| Mignon | Cute | Female | French |
| Mimi | Uncertain, maybe bitter | Female | Hebrew |
| Mina | Will, desire + helmet, protection | Female | Germanic |
| Mini | Something smaller than others of its type | Unisex | English |
| Mirabel | Lovely | Female | Latin |
| Mirabelle | Lovely | Female | Latin |
| Mirella | Uncertain, possibly admire | Female | French |
| Mirielle | Uncertain, possibly admire | Female | Latin |
| Missy | Bee | Female | Greek |
| Moko | | Unisex | Hebrew |
| Mollie | Uncertain, maybe bitter | Female | Hebrew |
| Momo | Gangster from the movie Get Shorty | Female | English |