| Name | Meaning | Gender | Origin |
|---|
| Kali | after the Indian goddess of death | Female | Sanskrit |
| Kane | tribute, warrior; the doubly-accomplished, golden; man, the eastern sky; beautiful | Male | Celtic |
| Katherine | Pure. Used since third century A.D. Early Latin forms Katerina and Caterina became Katharine and Catherine. French Cateline and English Catlyn came into wider use during medieval period when variants multiplied.
| Female | Greek |
| Kazimir | To Destroy Peace | Unisex | Russian |
| Keenan | Ancient
| Male | Irish |
| Keiran | Little, Dark | Unisex | Celtic |
| Kiara | Italian, light, clear | Female | Spelling |
| Killian | church | Male | Irish |
| Kismet | fate, destiny | Female | Word |
| Labyrinth | | Unisex | Hebrew |
| Lace | From Lassy, Normandy | Unisex | English |
| Lance | knight's attendant; land | Male | English |
| Lancelot | Knight of Arthur and lover of Guinevere
| Male | |
| Laura | bay laurel | Female | Latin |
| Layla | night | Female | Arabic |
| Layla | night | Female | Arabic |
| Lazarus | God's help | Male | Greek |
| Leander | lion man | Male | Greek |
| Leila | dark as the night | Female | Persian |
| Lenore | Torch | Female | English |
| Leon | lion | Male | Greek |
| Lilah | The Lily | Unisex | |
| Lilith | character in Cheers | Female | Assyrian |
| Lily | Lily
| Female | English |
| Lisha | Noble, Kind | Unisex | English |