| Jarlath | A noble and wise tribute. |
| Jileen | Youthful, form of julia |
| Jillian | Youthful, form of julia |
| Jonathena | Variant of John. |
| Justin | Being upright and honest |
| Kaelen | A name meaning the fighter. |
| Kagan | A thinker: fiery. Form of Hugh. |
| Kagen | A thinker: fiery. Form of Hugh. |
| Kahlan | It means a slender, strong man. |
| Kaitlan | Modern phonetic form of the Irish name Caitlin from Catherine meaning pure. |
| Kaitleen | Modern phonetic form of the Irish name Caitlin from Catherine meaning pure. |
| Kaitlin | Modern phonetic form of the Irish name Caitlin from Catherine meaning pure. |
| Kaitlyn | Modern phonetic form of the Irish name Caitlin from Catherine meaning pure. |
| Kaitlynn | Modern phonetic form of the Irish name Caitlin from Catherine meaning pure. |
| Kaitlynne | Pure. Alternate Spelling:Caitlin. |
| Kallie | Form of Callie, meaning 'a beautiful girl'; In Mythology Kali is wife of Shiva and a Hindu goddess symbolizing the essence of destruction.; Modern variant of Callie.; Variant of Cayley meaning from the forest |
| Kara | Abbreviation of Katherine. Pure.; Dear, beloved. From the feminine form of Italian 'cara' or the Latin 'carus'.; One who is pure / dearly loved / a good friend; Pure; Sweet Melody; Variant of Katherine. Pure. |
| Karny | Variant of Carney: Champion; victorious. |
| Karrae | Gods golden angel. |
| Kasey | A vigilant and alert guard |
| Kasie | Alert. vigorous. Modern variant of Casey. |
| Katelyn | Phonetic form of Caitlin - the Irish form of Katherine. Pure; Pure; Pure Beauty; Variant of Katherine. Pure. |
| Kathleena | Variant of Caitlin derived from Katherine. Pure. |
| Kathlene | Variant of Caitlin derived from Katherine. Pure. |
| Kathlynn | Variant of Caitlin derived from Katherine. Pure. |
| Katie | Diminutive of Katherine: Pure. Clear. From the Gaelic form Caitlin.; Pure; Pure, Virginal; Variant of Katherine. Pure. |
| Kavan | Handsome; Poet; Water, poem |
| Kaven | A handsome and poetic individual. |
| Kaylii | A modern name meaning keeper of keys. |
| Keagan | A thinker: fiery. Form of Hugh. |
| Kealan | A slender and fair warrior. |
| Keallach | A brightheaded warrior. |
| Kealsea | Brave. Alternate Spelling: Kelsey. |
| Kealy | A descendant of the slender. |
| Kean | One who is ancient and wise. |
| Keana | Feminine of Keane meaning ancient. |
| Keandre | A brave and manly warrior soul |
| Keanna | Variant of Kian. Ancient. |
| Keara | The name of a saint |
| Kearn | A dark or swarthy complexioned |