| Karisa | A name meaning grace or dear friend. |
| Karsten | Blessed or annointed one. Alternate Spelling: Carsten. Variant of Kristian. |
| Kasaundra | Variant of Kassandra. Unheeded prophetess. |
| Kasin | A name meaning a bright star. |
| Kasma | One who is beautiful and bright |
| Kasmo | A name of unknown origin and meaning. |
| Kasmy | A variant name of unknown definition. |
| Kasondra | Variant of Kassandra. Unheeded prophetess. |
| Kassandra | Unheeded prophetess. In Homer's 'The Iliad' Cassandra's prediction of the fall of Troy was unheeded. |
| Kassondra | Variant of Kassandra. Unheeded prophetess. |
| Katalina | Variant of Katherine. Pure. |
| Katarin | A variant spelling of Katherine. |
| Katarzyna | The Polish form of Katherine. |
| Katelyn | Phonetic form of Caitlin - the Irish form of Katherine. Pure; Pure; Pure Beauty; Variant of Katherine. Pure. |
| Katharine | A name meaning pure and clean. |
| Katharyn | Variant of Katherine. Pure. |
| Kathelyn | A pure and innocent person. |
| Kathrina | Variant of Katherine. Pure. |
| Kathryne | Variant of Katherine. Pure. |
| Katica | A Hungarian form of Katherine. |
| Katie | Diminutive of Katherine: Pure. Clear. From the Gaelic form Caitlin.; Pure; Pure, Virginal; Variant of Katherine. Pure. |
| Katriana | Variant of Katherine. Pure. |
| Katrina | Pure; Pure. Clear.; Swedish form of Katherine: pure.; Variant of Katherine. Pure. |
| Katus | A name meaning pure or spotless. |
| Katya | A name meaning pure and chaste. |
| KAY | A name meaning pure or keeper. |
| Kayson | A name meaning son of the righteous. |
| KEDALION | A figure from Greek mythology. |
| Keirsten | Variant of Kirsten. |
| KELEOS | Derived from the word for glory |
| KEPA | Hawaiian form of Stephen |
| Kepe | A variant of the name Kepa |
| KERES | A name meaning spirit of death. |
| KERIL | A variant of a darkhaired name. |
| Kestorr | Derived from a rocky hill. |
| Kethryn | A variant meaning pure or clear. |
| Khloey | A blooming or flourishing plant. |
| Khristian | "Anointed, follows Christ." |
| KHRISTOS | Greek name meaning anointed. |
| Khrustina | A variant of the name Christina. |