| Name | Meaning | Gender | Origin |
|---|
| Kimberly | Cyneburga's Royal Forest, Meadow | Female | English |
| Kipling | after Rudyard Kipling, writer | Unisex | |
| Kirkwood | From The Church's Forest | Unisex | English |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kodiak | Large Alaskan brown bear. | Female | Russian |
| Lacey | Cheerful One | Female | English |
| Lara | citadel | Female | Russian |
| Lathrop | From The Barn Farmstead | Unisex | English |
| Laurel | Laurel
| Female | Latin |
| Lavender | Lavender, A Purple Flower | Female | English |
| Lemon | | Unisex | Hebrew |
| Leslie | dweller in the gray castle; small meadow | Female | Scottish |
| Lilac | Bluish Purple | Female | Latin |
| Lilah | The Lily | Unisex | |
| Lilith | character in Cheers | Female | Assyrian |
| Lily | Lily
| Female | English |
| Lime | | Unisex | Hebrew |
| Lindsay | pool island; linden island | Female | English |
| Lockwood | From The Enclosed Wood | Unisex | English |
| London | fierce ruler of the world | Female | English |
| Lorelei | from the Rhine River | Female | |
| Loretta | Pure
| Female | English |
| Lorna | of Lorne | Female | English |