| Name | Meaning | Gender | Origin |
|---|
| Kim | chief | Male | English |
| Kinsey | victorious prince | Female | English |
| Kit | Nickname for Christopher. Frontiersman Kit Carson.
| Male | English |
| Kizzy | From Roots | Female | English |
| Lad | Teaches | Unisex | Anglo-Saxon |
| Lancelot | Knight of Arthur and lover of Guinevere
| Male | |
| Lara | citadel | Female | Russian |
| Lassie | Girl
| Female | |
| Legolas | Tolkien, Lord of the Rings | Unisex | |
| Lena | Alluring, Temptress, Light | Female | Greek |
| Lennie | Brave Lion | Unisex | English |
| Lennox | amid the lems, from the field of elm trees | Male | Scottish |
| Lenore | Torch | Female | English |
| Leon | lion | Male | Greek |
| Leona | Like A Lion | Female | French |
| Leonora | Light | Female | Italian |
| Leopold | after Leopoldo in the movie Blood and Roses | Male | |
| Leslie | dweller in the gray castle; small meadow | Female | Scottish |
| Lestat | | Unisex | Hebrew |
| Lily | Lily
| Female | English |
| Livia | Olive Tree | Female | English |
| Lizzie | From Elizabeth - Consecrated to God | Female | English |
| Lola | strong woman | Female | Spanish |
| Lolita | Spanish, lady of sorrows | Female | Spanish |
| Lucille | light | Female | |