| Name | Meaning | Gender | Origin |
|---|
| Lucy | light: illumination.
| Female | English |
| Ludwig | Famous fighter
| Male | |
| Lydia | woman from Persia, beauty | Female | Greek |
| Mabel | my fair maid; lovely | Female | English |
| Mac | Son of
| Male | Scottish |
| Madison | son of a mighty warrior; son of Maud | Female | English |
| Mae | bitter | Female | English |
| Magna | Large | Unisex | Latin |
| Maisie | child of light | Female | Scottish |
| Margaret | after Margaret Thatcher | Female | Greek |
| Mark | warlike | Male | Latin |
| Marta | Lady Of The House | Female | Italian |
| Martha | a lady | Female | Aramaic |
| Martin | Warlike person. | Male | Latin |
| Maurice | moorish; dark; moor land | Male | Latin |
| Merry | Mirthful: joyous. Also an abbreviation of Meredith.
| Female | English |
| Mia | Mine | Female | Scandinavian |
| Mickey | Abbreviation of Michael and Micah Who is like God?
| Male | English |
| Mika | Abbreviation of Michaela:Micaela: Mikaela: Mikayla: Mychaela: Mikella. Feminine of Michael gift from God.
| Female | Japanese |
| Millie | English, gentle strength | Female | English |
| Milton | from the mill town | Male | English |
| Miriam | bitter | Female | Hebrew |
| Monica | advisor | Female | Latin |
| Morton | town near the moor | Male | English |
| Mother | | Unisex | Hebrew |