| Name | Meaning | Gender | Origin |
|---|
| 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 |
| Kelly | Lively: aggressive.
| Female | Irish |
| Kincaid | | Unisex | Hebrew |
| Kipling | after Rudyard Kipling, writer | Unisex | |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Lady | A female title of nobility. | Female | |
| Lana | Attractive | Female | English |
| Laura | bay laurel | Female | Latin |
| Laurel | Laurel
| Female | Latin |
| Lauren | bay laurel | Female | English |
| Leah | cow, weary one; glad tidings; mistress, ruler | Female | Hebrew |
| Leigh | meadow | Female | English |
| Lena | Alluring, Temptress, Light | Female | Greek |
| Libby | Diminutive of Elizabeth.
| Female | English |
| Lila | night | Female | Arabic |
| Lilac | Bluish Purple | Female | Latin |
| Liliana | lily, a flower | Female | Italian |
| Lilith | character in Cheers | Female | Assyrian |
| Lily | Lily
| Female | English |
| Lois | Battle Maiden | Female | Greek |
| Louise | Renowned fighter. Feminine of Louis.
| Female | |
| Lucille | light | Female | |
| Lucinda | light | Female | English |