| Name | Meaning | Gender | Origin |
|---|
| Leopold | after Leopoldo in the movie Blood and Roses | Male | |
| Leroy | The king.
| Male | |
| Levi | United | Male | Hebrew |
| Liam | Form of William.
| Male | Irish |
| Lila | night | Female | Arabic |
| Lillian | lily, a flower | Female | English |
| Lily | Lily
| Female | English |
| Lincoln | Capital of Nebraska, USA. Old English: home by the pond | Male | English |
| Loretta | Pure
| Female | English |
| Louis | famed warrior | Male | |
| Louise | Renowned fighter. Feminine of Louis.
| Female | |
| Lucia | Light | Female | Italian |
| Lucille | light | Female | |
| Lucinda | light | Female | English |
| Lucretia | Riches | Female | Latin |
| Luella | Famous elf
| Female | Spelling |
| Lula | Abundant | Female | English |
| Lydia | woman from Persia, beauty | Female | Greek |
| Mabel | my fair maid; lovely | Female | English |
| Mack | Son of
| Male | Scottish |
| Madeline | woman from Magdala, one who is elevated, a high tower | Female | English |
| Mae | bitter | Female | English |
| Maguire | son of the beige one | Male | Irish |
| Maisie | child of light | Female | Scottish |
| Mamie | Mother | Female | English |