| Name | Meaning | Gender | Origin |
|---|
| Malachai | Messenger Of God | Unisex | Hebrew |
| Marcus | warlike | Male | Latin |
| Margaret | after Margaret Thatcher | Female | Greek |
| Mariah | the Lord is my teacher | Female | Latin |
| Marie | Bitter
| Female | |
| Marigold | a flower | Female | |
| Marilyn | bitter | Female | English |
| Marissa | of the sea | Female | English |
| Marley | From the lake in the meadow | Female | English |
| Marley | From the lake in the meadow | Female | English |
| Mars | God Of War | Male | Latin |
| Martin | Warlike person. | Male | Latin |
| Martina | Warlike | Female | Latin |
| Mason | Worker in stone. | Male | English |
| Matilda | battle-mighty | Female | |
| Max | Large spring | Male | English |
| Max | Large spring | Male | English |
| Maxine | greatest | Female | Latin |
| Maya | Abbreviation of Amalia: variant of Maia.
| Female | Hebrew |
| Megan | mighty, strong able, pearl | Female | English |
| Melanie | Dark.
| Female | Greek |
| Melissa | bee, honey | Female | Greek |
| Mercury | Trade God | Male | Latin |
| Mercy | compassion, pity | Female | English |
| Merlin | Character on Chocolate Frog card.
| Male | Welsh |