| Name | Meaning | Gender | Origin |
|---|
| Katelyn | pure | Female | Spelling |
| 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 |
| Kathleen | Innocent
| Female | Anglicized |
| Katie | Variant of Katherine. Pure.
| Female | English |
| Katrina | Greek, pure | Female | |
| Kaya | my elder sister | Female | Native |
| Kayla | crown of laurels | Female | Arabic |
| Kaylee | Arabic and Hebrew, laurel, crown | Female | American |
| Kayleigh | Slender | Unisex | English |
| Kaylen | Variant Of Kay And Kayla. Keeper Of The Keys; Pure. | Unisex | English |
| Keira | after the actress Keira Knightley | Female | Irish |
| Kelly | Lively: aggressive.
| Female | Irish |
| Kelsey | Ceol's island, beautiful island; from the ship's island, shipping harbor | Female | English |
| Kendall | ruler of the valley | Female | English |
| Kendra | Blend of Ken: (royal obligation:clear water) and Sandra: (protector of man) or Andrea: (manly or masculine).
| Female | English |
| Kennedy | misshapen head | Female | Irish |
| Kenya | Animal Horn | Female | Hebrew |
| Kiana | Variant of Kian. Ancient.
| Female | Modern |
| Kiara | Italian, light, clear | Female | Spelling |
| Kimberly | Cyneburga's Royal Forest, Meadow | Female | English |
| Kimora | Kim + Ora, Ruler | Female | American |
| Kira | Dark Lady.
| Female | Russian |
| Kirsten | christian; stone church | Female | Scandinavian |
| Kristen | Anointed, Follower Of Christ | Female | Danish |
| Krystal | Crystal, Ice | Unisex | Greek |