| Name | Meaning | Gender | Origin |
|---|
| Kane | tribute, warrior; the doubly-accomplished, golden; man, the eastern sky; beautiful | Male | Celtic |
| 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 |
| Keely | Beautiful | Unisex | Irish |
| Kelby | Dark: dark-haired.
| Male | English |
| Kelli | From The Wood | Unisex | Welsh |
| Kelly | Lively: aggressive.
| Female | Irish |
| Kendall | ruler of the valley | Female | English |
| Kennedy | misshapen head | Female | Irish |
| Kenya | Animal Horn | Female | Hebrew |
| Kirby | church settlement | Male | Norse |
| Kristin | Anointed, Follower Of Christ | Female | German |
| Kyle | A place-name referring to the narrows: a wood or a church.
| Male | Scottish |
| Lacey | Cheerful One | Female | English |
| Laine | From the long meadow
| Male | |
| Lamont | Man Of Law | Male | Scottish |
| Lance | knight's attendant; land | Male | English |
| Lathrop | From The Barn Farmstead | Unisex | English |
| Laura | bay laurel | Female | Latin |
| Lawson | son of Lawrence | Male | English |
| Lee | Healer
| Male | English |
| Leland | from the meadow land | Male | English |
| Leo | Lion.
| Male | Latin |
| Leroy | The king.
| Male | |
| Levi | United | Male | Hebrew |