| Name | Meaning | Gender | Origin |
|---|
| Jerry | after Jerry Garcia, The Grateful Dead | Male | English |
| Juno | queen of the heavens | Female | Latin |
| Kai | Fire
| Male | Hawaiian |
| Kana | Powerful | Unisex | Japanese |
| Kane | tribute, warrior; the doubly-accomplished, golden; man, the eastern sky; beautiful | Male | Celtic |
| Kazuo | Harmonious Man | Unisex | Japanese |
| Keiko | Japanese for happy or beloved | Female | Japanese |
| Keith | wood, wind; wood-dweller | Male | Scottish |
| Ken | Male Barbie Doll. | Male | English |
| Kenji | after Michael Kenji Shinoda, from the band Linkin Park | Male | Japanese |
| Kennedy | misshapen head | Female | Irish |
| Kenshin | Sword, Heart | Unisex | Japanese |
| Kimi | righteous | Female | Japanese |
| Kioko | Meets World With Happiness | Unisex | Japanese |
| Kita | north | Unisex | |
| Kohana | little flower | Unisex | |
| Koji | | Unisex | Hebrew |
| Kura | Treasure House | Unisex | Japanese |
| Kyo | Approval, Ginger, Or Large | Unisex | Japanese |
| Lalo | To Sing A Lullaby | Unisex | Latin |
| Lane | narrow road | Male | English |
| Lara | citadel | Female | Russian |
| Laverne | Woodland.
| Female | |
| Lewis | Renowned fighter. Form of Louis.
| Male | English |
| Lex | Protector Of Mankind | Male | English |