| Name | Meaning | Gender | Origin |
|---|
| Jessie | wealthy | Female | Anglicized |
| Jewel | Jewel
| Female | Word |
| Joelle | Jehovah is God
| Female | |
| Josie | From Josephine - She shall add. | Female | English |
| Julia | Youthful
| Female | Latin |
| Julie | Youthful: Jove's child. A feminine of Julian.
| Female | |
| Juliet | youthful | Female | English |
| Juliette | youthful | Female | |
| Kate | Pure | Female | English |
| Katie | Variant of Katherine. Pure.
| Female | English |
| Kaycee | Vigilant, Watchful | Unisex | English |
| Kayleigh | Slender | Unisex | English |
| Kelly | Lively: aggressive.
| Female | Irish |
| Kylie | Boomerang. Feminine form of Kyle.
| Female | Aboriginal |
| Lacey | Cheerful One | Female | English |
| Laura | bay laurel | Female | Latin |
| Laurel | Laurel
| Female | Latin |
| Leah | cow, weary one; glad tidings; mistress, ruler | Female | Hebrew |
| Leia | Weary | Unisex | Hebrew |
| Leila | dark as the night | Female | Persian |
| Lia | dependence | Female | Italian |
| Lilac | Bluish Purple | Female | Latin |
| Lilah | The Lily | Unisex | |
| Lily | Lily
| Female | English |
| Lina | tender | Unisex | |