| Name | Meaning | Gender | Origin |
|---|
| Leopold | after Leopoldo in the movie Blood and Roses | Male | |
| Liam | Form of William.
| Male | Irish |
| Liliana | lily, a flower | Female | Italian |
| Lillian | lily, a flower | Female | English |
| Lily | Lily
| Female | English |
| Lincoln | Capital of Nebraska, USA. Old English: home by the pond | Male | English |
| London | fierce ruler of the world | Female | English |
| Louis | famed warrior | Male | |
| Lucas | Form of Luke light: illumination.
| Male | Latin |
| Lucia | Light | Female | Italian |
| Luciana | light | Female | Italian |
| Lucille | light | Female | |
| Lucinda | light | Female | English |
| Lucius | Light | Male | Roman |
| Lucy | light: illumination.
| Female | English |
| Mable | Lovable | Unisex | English |
| Macadam | | Unisex | |
| Madeleine | From the tower
| Female | |
| Madeline | woman from Magdala, one who is elevated, a high tower | Female | English |
| Madison | son of a mighty warrior; son of Maud | Female | English |
| Marcus | warlike | Male | Latin |
| Margaret | after Margaret Thatcher | Female | Greek |
| Marshall | Man who looks after a nobleman's estate, keeper of the horses; steward | Male | |
| Marston | residence near a marshy place | Male | English |
| Martin | Warlike person. | Male | Latin |