| Name | Meaning | Gender | Origin |
|---|
| MacGyver | | Unisex | Hebrew |
| Mackerel | | Unisex | Hebrew |
| Macy | from Matthew's land; club | Female | English |
| Maddie | Of Magdala | Female | English |
| Madison | son of a mighty warrior; son of Maud | Female | English |
| Maggie | Abbreviation of Margaret. A pearl.
| Female | English |
| Maia | nurse, mother, goddess of spring; great | Female | Greek |
| Mama Kitty | | Unisex | Hebrew |
| Mamie | Mother | Female | English |
| Mara | Sorrowful | Female | Hebrew |
| Maria | bitter | Female | Latin |
| Marie | Bitter
| Female | |
| Marley | From the lake in the meadow | Female | English |
| Marley | From the lake in the meadow | Female | English |
| Maya | Abbreviation of Amalia: variant of Maia.
| Female | Hebrew |
| Mea | Mine | Unisex | Italian |
| Meekah | | Unisex | |
| Megabyte | | Unisex | Hebrew |
| Meisha | | Unisex | Hebrew |
| Melissa | bee, honey | Female | Greek |
| Melody | song | Female | Greek |
| Melon | | Unisex | |
| Mercy | compassion, pity | Female | English |
| Mew | | Unisex | Hebrew |
| Mia | Mine | Female | Scandinavian |