| Name | Meaning | Gender | Origin |
|---|
| Jeramiah | | Unisex | Hebrew |
| Jessica | God's grace | Female | Hebrew |
| Jessie | wealthy | Female | Anglicized |
| Jessy | God's Gracious Gift | Unisex | Hebrew |
| Jezebel | follower of idols | Female | Hebrew |
| Joanna | after the character in The Rescuers Down Under cartoon | Female | English |
| Joaquina | God shall establish
| Female | Spanish |
| Jodie | From Judith - Admired and praised | Unisex | |
| Joelle | Jehovah is God
| Female | |
| Joellen | Jehovah is God. Feminine of Joel.
| Female | |
| Jola | God is willing | Female | Hebrew |
| Jordy | Flow, Descend | Unisex | English |
| Jorie | God will uplift
| Female | English |
| Josee | God Will Increase | Unisex | French |
| Josephina | God Will Increase | Unisex | Latin |
| Josephine | God will increase | Female | |
| Josette | Jehovah increases | Female | |
| Josh | God Saves | Unisex | English |
| Josie | From Josephine - She shall add. | Female | English |
| Judy | Hebrew, He will be praised, woman from Judea | Female | English |
| Julie | Youthful: Jove's child. A feminine of Julian.
| Female | |
| Kelila | laurel, crown | Female | Hebrew |
| Kezia | cassia, cinnamon | Female | Hebrew |
| Keziah | cassia tree | Female | Hebrew |
| Klara | Clear, Bright | Unisex | Scandinavian |