| Name | Meaning | Gender | Origin |
|---|
| Luna | moon | Female | Latin |
| Luther | Renowned warrior.
| Male | |
| Maddox | Beneficient | Male | Welsh |
| Mads | Gift from God
| Male | |
| Mae | bitter | Female | English |
| Magellan | | Unisex | Hebrew |
| Maggie | Abbreviation of Margaret. A pearl.
| Female | English |
| Magnolia | Flower
| Female | Latin |
| Maisie | child of light | Female | Scottish |
| Marco | warlike | Male | Italian |
| Margot | Variant of Margaret | Female | |
| Maria | bitter | Female | Latin |
| Marigold | a flower | Female | |
| Max | Large spring | Male | English |
| Max | Large spring | Male | English |
| Maximus | greatest | Male | Latin |
| Mercedes | Compassionate, merciful. | Female | Spanish |
| Meredith | great ruler | Female | Welsh |
| Merry | Mirthful: joyous. Also an abbreviation of Meredith.
| Female | English |
| Millicent | after the character in D.C. Simpson's online comic Ozy and Millie | Female | |
| Millie | English, gentle strength | Female | English |
| Monroe | mouth of the Roe River; wheelwright | Female | Scottish |
| Monroe | mouth of the Roe River; wheelwright | Female | Scottish |
| Mordecai | warrior | Male | Hebrew |
| Myles | inventor of the corn mill | Male | English |