| Name | Meaning | Gender | Origin |
|---|
| Kathleen | Innocent
| Female | Anglicized |
| Katie | Variant of Katherine. Pure.
| Female | English |
| Kennedy | misshapen head | Female | Irish |
| Kipling | after Rudyard Kipling, writer | Unisex | |
| Laura | bay laurel | Female | Latin |
| Lawson | son of Lawrence | Male | English |
| Leah | cow, weary one; glad tidings; mistress, ruler | Female | Hebrew |
| Leander | lion man | Male | Greek |
| Leigh | meadow | Female | English |
| Lena | Alluring, Temptress, Light | Female | Greek |
| Lenora | Italian diminutive of Eleonora or Eleanor, meaning unknown | Female | English |
| Leslie | dweller in the gray castle; small meadow | Female | Scottish |
| Libby | Diminutive of Elizabeth.
| Female | English |
| Lila | night | Female | Arabic |
| Lillian | lily, a flower | Female | English |
| Linda | pretty | Female | |
| Lionel | Cousin of Lancelot
| Male | Latin |
| Livingston | dear friend's place | Male | English |
| Lola | strong woman | Female | Spanish |
| Lucia | Light | Female | Italian |
| Lucille | light | Female | |
| Lucy | light: illumination.
| Female | English |
| Luella | Famous elf
| Female | Spelling |
| Luisa | Spanish form of Louise famous in war
| Female | Italian |
| Lydia | woman from Persia, beauty | Female | Greek |