| Name | Meaning | Gender | Origin |
|---|
| Julian | Jove's child. Form of Julius and family clan name of several powerful Roman emperors. Biblical Roman centurion Julius saved Paul's life during a hazardous voyage
| Male | English |
| Kat | pure | Female | English |
| Kate | Pure | Female | English |
| 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 |
| Katie | Variant of Katherine. Pure.
| Female | English |
| Keira | after the actress Keira Knightley | Female | Irish |
| Kelly | Lively: aggressive.
| Female | Irish |
| Kodi | | Unisex | Hebrew |
| Lance | knight's attendant; land | Male | English |
| Leo | Lion.
| Male | Latin |
| Lex | Protector Of Mankind | Male | English |
| Lexie | Protector Of Mankind | Unisex | English |
| Lia | dependence | Female | Italian |
| Liam | Form of William.
| Male | Irish |
| Liliana | lily, a flower | Female | Italian |
| Lina | tender | Unisex | |
| Lindsay | pool island; linden island | Female | English |
| Lissa | Honey
| Female | African |
| Liz | Hebrew, pledged to God | Female | English |
| Lizzie | From Elizabeth - Consecrated to God | Female | English |
| Logan | little hollow | Male | Scottish |
| Lottie | free man | Female | English |
| Lou | Famous Warrior | Male | English |
| Louis | famed warrior | Male | |
| Luc | man from Lucania | Male | |