| Name | Meaning | Gender | Origin |
|---|
| Lucretia | Riches | Female | Latin |
| Luella | Famous elf
| Female | Spelling |
| Luna | moon | Female | Latin |
| Lux | latin for light | Female | Latin |
| Lydia | woman from Persia, beauty | Female | Greek |
| Lyra | lyre | Female | Greek |
| Madison | son of a mighty warrior; son of Maud | Female | English |
| Maeve | goddess; a purple flower | Female | Irish |
| Mambo | A Latin dance resembling the rumba. | Unisex | |
| Maple | Deciduous tree known for it's autumn colour. | Female | Tree |
| Mary | bitter | Female | Hebrew |
| Mathilda | battle maiden, strength | Female | English |
| Mathilde | Mighty In Battle | Female | French |
| Matilda | battle-mighty | Female | |
| Maura | Great | Female | Scottish |
| Medea | ruling; middle child | Female | Greek |
| Melania | black | Female | Spanish |
| Melinda | Blend of Melissa and Linda.
| Female | English |
| Melissa | bee, honey | Female | Greek |
| Meredith | great ruler | Female | Welsh |
| Millicent | after the character in D.C. Simpson's online comic Ozy and Millie | Female | |
| Minerva | after the Roman goddess of the hunt | Female | Latin |
| Minnie | Form of Williamina
| Female | English |
| Misty | misty.
| Female | English |
| Misty | misty.
| Female | English |