| Name | Meaning | Gender | Origin |
|---|
| Jake | Supplanted | Male | Hebrew |
| Java | Brewed coffee | Unisex | English |
| Jesse | Gift | Male | Hebrew |
| Jester | A fool at medieval courts | Unisex | English |
| Jett | Black gemstone | Male | English |
| Kahlua | | Unisex | Hebrew |
| Kami | Altar server | Male | Latin |
| Kasper | Treasurer | Unisex | Persian |
| Kato | [Pure] | Male | Greek |
| Kazan | A creative man | Male | Greek |
| Keanu | Cool breeze over mountains | Unisex | Hawaiian |
| Kevin | Beautiful at birth | Male | Gaelic |
| Kiev | The capital city of Ukraine | Male | Russian |
| Kimba | English place-name | Unisex | English |
| Kino | | Unisex | Hebrew |
| Kiowa | | Unisex | Hebrew |
| Kishi | Beach, seashore | Unisex | Japanese |
| Klondike | | Unisex | Hebrew |
| Kodiak | Island | Unisex | Russian |
| Kody | Descendant of Cuidighthigh | Male | Gaelic |
| Lady | Lady | Unisex | English |
| Lakota | Friend | Unisex | English |
| Lev | Heart | Male | Hebrew |
| Logan | Hollow | Unisex | Gaelic |
| Lucky | Fortunate | Unisex | English |
| Luigi | Fame + war | Male | Germanic |
| Luka | Man from Lucania | Unisex | Greek |
| Maier | Farmer; bright, shining; larger | Male | English |
| Malakai | My messenger | Male | Hebrew |
| Maverick | Dissenter | Unisex | English |