| Name | Meaning | Gender | Origin |
|---|
| Jim | supplanter | Male | English |
| Jimmy | supplanter | Male | English |
| Jodie | From Judith - Admired and praised | Unisex | |
| Joe | Abbreviation of Joseph.
| Male | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| Joey | Abbreviation of Joseph.
| Male | |
| Joey | Abbreviation of Joseph.
| Male | |
| John | God is merciful | Male | Hebrew |
| 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 |
| Joseph | God will increase | Male | Hebrew |
| Joshua | God is salvation
| Male | Hebrew |
| Judd | praised | Male | Medieval |
| Kade | From the wetlands.
| Male | Spelling |
| Kai | Fire
| Male | Hawaiian |
| Kaiden | Fighter | Unisex | American |
| Kane | tribute, warrior; the doubly-accomplished, golden; man, the eastern sky; beautiful | Male | Celtic |
| Keegan | A thinker: fiery. Form of Hugh.
| Male | Irish |
| Ken | Male Barbie Doll. | Male | English |
| Kevin | handsome | Male | Irish |
| Kyle | A place-name referring to the narrows: a wood or a church.
| Male | Scottish |
| Leif | heir, descendant | Male | Scandinavian |
| Lennox | amid the lems, from the field of elm trees | Male | Scottish |
| Leo | Lion.
| Male | Latin |
| Levi | United | Male | Hebrew |