| Name | Meaning | Gender | Origin |
|---|
| Isaac | laughing one | Male | Hebrew |
| Jace | Hebrew, the Lord is salvation | Male | Hebrew |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jake | From Jacob - To fill the place of another | Male | Hebrew |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jax | God has been gracious: has shown favor. Based on John or Jacques.
| Male | Modern |
| Jeb | beloved friend | Male | English |
| Jeremy | God will uplift, appointed by God | Male | English |
| Jimmy | supplanter | Male | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| Joey | Abbreviation of Joseph.
| Male | |
| Joey | Abbreviation of Joseph.
| Male | |
| 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 |
| Joshua | God is salvation
| Male | Hebrew |
| Kade | From the wetlands.
| Male | Spelling |
| Kai | Fire
| Male | Hawaiian |
| Kane | tribute, warrior; the doubly-accomplished, golden; man, the eastern sky; beautiful | Male | Celtic |
| Keegan | A thinker: fiery. Form of Hugh.
| Male | Irish |
| Kyle | A place-name referring to the narrows: a wood or a church.
| Male | Scottish |
| Leif | heir, descendant | Male | Scandinavian |