| Name | Meaning | Gender | Origin |
|---|
| Isis | throne | Female | Egyptian |
| Ivy | ivy plant, a wine | Female | Plant |
| Jada | wise | Female | Spanish |
| Jasmine | Flower
| Female | Persian |
| Jellylorum | | Unisex | Hebrew |
| Jennifer | white shadow, white wave | Female | Cornish |
| Jibril | archangel Gabriel | Unisex | |
| Kachina | Sacred Dancer | Unisex | Native American |
| Kader | Able | Unisex | Arabic |
| Kala | time, black | Unisex | |
| Kali | after the Indian goddess of death | Female | Sanskrit |
| 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 |
| Katy | pure | Female | Short |
| Katy | pure | Female | Short |
| Kelly | Lively: aggressive.
| Female | Irish |
| Kennedy | misshapen head | Female | Irish |
| Kiara | Italian, light, clear | Female | Spelling |
| Kismet | fate, destiny | Female | Word |
| Kizzy | From Roots | Female | English |
| Lady | A female title of nobility. | Female | |
| Larissa | name of a city, mythical woman; cheerful one | Female | Ltin |
| Layla | night | Female | Arabic |
| Layla | night | Female | Arabic |
| Leda | happy | Female | Greek |
| Lilith | character in Cheers | Female | Assyrian |