| Name | Meaning | Gender | Origin |
|---|
| Kino | | Unisex | Hebrew |
| Kiowa | | Unisex | Hebrew |
| Kira | Dark | Female | Gaelic |
| Kishi | Beach, seashore | Unisex | Japanese |
| Kiska | Pure | Female | English |
| Kita | North | Female | Japanese |
| Kiya | Egyptian mythology | Female | English |
| Klondike | | Unisex | Hebrew |
| Kodiak | Island | Unisex | Russian |
| Kody | Descendant of Cuidighthigh | Male | Gaelic |
| Lady | Lady | Unisex | English |
| Laika | The barker | Female | Russian |
| Lakota | Friend | Unisex | English |
| Lancer | A cavalry soldier who fights with a lance | Both | Hebrew |
| Leah | Weary | Female | Hebrew |
| Lev | Heart | Male | Hebrew |
| Lexis | Defender | Female | Greek |
| Lily | Lily | Female | English |
| Logan | Hollow | Unisex | Gaelic |
| Lola | Sorrows | Female | Spanish |
| Luas | Speed | Both | Irish |
| Lucky | Fortunate | Unisex | English |
| Lucy | Light | Female | Latin |
| Luigi | Fame + war | Male | Germanic |
| Luka | Man from Lucania | Unisex | Greek |
| Luna | Moon | Female | Latin |
| Lupe | Valley of the wolves | Female | Spanish |
| Lynx | Keepers of the secrets of the forests in mythology, also the name of a constellation in the Northern Hemisphere's sky | Both | English |
| Maggie | Pearl | Female | Greek |
| Maier | Farmer; bright, shining; larger | Male | English |