| Name | Meaning | Gender | Origin |
|---|
| Ivana | God is gracious | Female | Feminine |
| Ivy | ivy plant, a wine | Female | Plant |
| Jacques | supplanter | Male | |
| Jade | Jewel. Courageous and adoring.
| Female | Spanish |
| Jane | gracious, merciful, God is gracious | Female | English |
| Jasmine | Flower
| Female | Persian |
| Javier | Born in January
| Male | Spanish |
| Jenny | Diminutive of Jane and Jennifer.
| Female | English |
| Jenny | Diminutive of Jane and Jennifer.
| Female | English |
| Jewel | Jewel
| Female | Word |
| Joanna | after the character in The Rescuers Down Under cartoon | Female | English |
| Joy | From Joyce - Gay and joyful | Female | Word |
| Juliet | youthful | Female | English |
| Kara | pure | Female | English |
| Karina | Italian, dear little one | Female | Scandinavian |
| Keegan | A thinker: fiery. Form of Hugh.
| Male | Irish |
| Kiana | Variant of Kian. Ancient.
| Female | Modern |
| Kira | Dark Lady.
| Female | Russian |
| Kismet | fate, destiny | Female | Word |
| Kit Kat | | Unisex | |
| Kit Kat | | Unisex | |
| Kitten | | Unisex | |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kitty | Variant of Katherine. Pure.
| Female | English |