| 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 |
| Justin | just, true | Male | Latin |
| 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 |
| Kayla | crown of laurels | Female | Arabic |
| Kaylee | Arabic and Hebrew, laurel, crown | Female | American |
| Keefer | Barrelmaker Variation of Cooper. Surname.
| Male | |
| Keene | Ancient.
| Male | |
| Keith | wood, wind; wood-dweller | Male | Scottish |
| Kelsey | Ceol's island, beautiful island; from the ship's island, shipping harbor | Female | English |
| Kendall | ruler of the valley | Female | English |
| Kevin | handsome | Male | Irish |
| Kidd | | Unisex | |
| Kila | | Unisex | |
| King | King's field. King is one of several titles occasionally used as given names.
| Male | English |
| Kingsley | Residence Name | Male | English |
| Kingston | From the king's village or estate King's field. King is one of several titles occasionally used as given names.
| Male | English |
| Kinsey | victorious prince | Female | English |
| Kipp | wearing a crown, sharply pointed hill | Male | English |
| Kirby | church settlement | Male | Norse |
| Kismet | fate, destiny | Female | Word |
| Kruger | | Unisex | Hebrew |
| Kyle | A place-name referring to the narrows: a wood or a church.
| Male | Scottish |
| Kylie | Boomerang. Feminine form of Kyle.
| Female | Aboriginal |
| L | | Unisex | |