| Name | Meaning | Gender | Origin |
|---|
| Joel | God is willing, Jehova is the Lord | Male | Hebrew |
| Joey | Abbreviation of Joseph.
| Male | |
| Joey | Abbreviation of Joseph.
| Male | |
| John | God is merciful | Male | Hebrew |
| Johnny | the Lord is gracious | Male | English |
| Jon | God is gracious; or gift of Jehovah | Male | English |
| Jonah | Dove. In the bible Jonah was on board a ship God caused to sink: sailors traditionally use the name Jonah to personify someone who brings bad luck.
| Male | Hebrew |
| Jonas | Dove. Variant of Hebrew Jonah.
| Male | Greek |
| Jonathan | God gives | Male | Hebrew |
| Jordan | The descending river, to flow | Male | Hebrew |
| Jorge | Spanish form of George farmer
| Male | Spanish |
| Joseph | God will increase | Male | Hebrew |
| Josh | God Saves | Unisex | English |
| Josie | From Josephine - She shall add. | Female | English |
| Judd | praised | Male | Medieval |
| Judy | Hebrew, He will be praised, woman from Judea | Female | English |
| Julia | Youthful
| Female | Latin |
| Julian | Jove's child. Form of Julius and family clan name of several powerful Roman emperors. Biblical Roman centurion Julius saved Paul's life during a hazardous voyage
| Male | English |
| Julie | Youthful: Jove's child. A feminine of Julian.
| Female | |
| June | 6Th Month | Female | English |
| Jurgen | German form of George
| Male | |
| Justin | just, true | Male | Latin |
| Justine | just, true | Female | |
| Kai | Fire
| Male | Hawaiian |
| Kate | Pure | Female | English |