| Name | Meaning | Gender | Origin |
|---|
| Joanna | after the character in The Rescuers Down Under cartoon | Female | English |
| Jordan | The descending river, to flow | Male | Hebrew |
| Jory | God will uplift
| Male | English |
| Josie | From Josephine - She shall add. | Female | English |
| Julia | Youthful
| Female | Latin |
| Julie | Youthful: Jove's child. A feminine of Julian.
| Female | |
| Karina | Italian, dear little one | Female | Scandinavian |
| Kasia | Pure | Female | Polish |
| Katarina | pure | Female | Czech |
| Kate | Pure | Female | English |
| Katie | Variant of Katherine. Pure.
| Female | English |
| Katja | Pure.
| Female | |
| Katya | pure | Female | Russian |
| Kel | | Unisex | Hebrew |
| Kika | | Unisex | Hebrew |
| Kimora | Kim + Ora, Ruler | Female | American |
| Kipp | wearing a crown, sharply pointed hill | Male | English |
| Krishna | dark, black | Male | Sanskrit |
| Kristy | Anointed, Follower Of Christ | Female | English |
| Lara | citadel | Female | Russian |
| Lars | after the Metallica drummer Lars Ulrich | Male | Scandinavian |
| Laura | bay laurel | Female | Latin |
| Lauren | bay laurel | Female | English |
| Lea | weary or meadow | Female | English |
| Leila | dark as the night | Female | Persian |