| Name | Meaning | Gender | Origin |
|---|
| Karinna | | Female | |
| Kathleen | Innocent
| Female | Anglicized |
| Kawaii | | Unisex | |
| Keenan | Ancient
| Male | Irish |
| Keiko | Japanese for happy or beloved | Female | Japanese |
| Kelly | Lively: aggressive.
| Female | Irish |
| Kendall | ruler of the valley | Female | English |
| Kentuky | | Male | |
| Kia | season's beginning | Female | African |
| Kidino | | Male | Hebrew |
| Kingston | From the king's village or estate King's field. King is one of several titles occasionally used as given names.
| Male | English |
| Kitler | | Male | Hebrew |
| Knickers | | Male | |
| Kreatcher | the Black's house elf
| Male | |
| Lace | From Lassy, Normandy | Unisex | English |
| Lacy | Derived from Lacey which is a French Nobleman's surname brought to British Isles after Norman conquest.
| Male | |
| Lady | A female title of nobility. | Female | |
| Lalima | Beauty and Goddess Laxmi
| Female | |
| Lancelot | Knight of Arthur and lover of Guinevere
| Male | |
| Lassie | Girl
| Female | |
| Laverna | Born in the spring
| Female | |
| Leaf | | Male | |
| Leah | cow, weary one; glad tidings; mistress, ruler | Female | Hebrew |
| Leo | Lion.
| Male | Latin |
| Liam | Form of William.
| Male | Irish |