| Name | Meaning | Gender | Origin |
|---|
| Junior | Youthful person. Used to distinguish son from father where they have the same name | Male | Latin |
| Juniper | Juniper Tree | Female | English |
| Juno | queen of the heavens | Female | Latin |
| Jupiter | Zeus, Father | Male | Roman |
| Jurgen | German form of George
| Male | |
| Just | | Unisex | Hebrew |
| Jynx | Charm, Spell | Unisex | Latin |
| Kabuki | Type Of Drama | Male | Japanese |
| Kafka | jackdaw | Male | Czech |
| Kahlua | | Unisex | |
| Kahuna | | Unisex | |
| Kaiser | Any of the emperors of The Holy Roman Empire, Austria or Germany | Unisex | |
| Kalamazoo | | Unisex | |
| Kali | after the Indian goddess of death | Female | Sanskrit |
| Kandy | Cutie
| Male | |
| Kane | tribute, warrior; the doubly-accomplished, golden; man, the eastern sky; beautiful | Male | Celtic |
| Kannika | Japanese for jasmine like blossom | Unisex | |
| Karen | pure | Female | Danish |
| Karma | Fate or destiny (Hinduism and Buddhism) | Female | Hindi |
| Kasha | | Unisex | Hebrew |
| Kashmir | Name Of A State In India Kasi | Female | Hindi |
| Katie | Variant of Katherine. Pure.
| Female | English |
| Katniss | | Female | |
| Katniss | | Female | |
| Kawaii | | Unisex | |