| Name | Meaning | Gender | Origin |
|---|
| Gidget | | Unisex | Hebrew |
| Gizmo | A mechanical device or gadget. | Unisex | |
| Goldilocks | | Unisex | Hebrew |
| Hasan | Virtuous, Attractive | Unisex | Arabic |
| Hershey | Brand of chocolate. | Male | |
| Honeybee | | Unisex | Hebrew |
| Izzy | Salvation By God | Male | English |
| 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 |
| Jellybean | | Unisex | Hebrew |
| Jilly | Downy Haired | Unisex | English |
| John | God is merciful | Male | Hebrew |
| Joseph | God will increase | Male | Hebrew |
| June Bug | | Unisex | Hebrew |
| Kahlua | | Unisex | |
| Katerina | Blessed, Pure, Holy | Unisex | Czechoslovakian |
| Kewpie | | Unisex | Hebrew |
| Kit | Nickname for Christopher. Frontiersman Kit Carson.
| Male | English |
| Kit Kat | | Unisex | |
| Kit Kat | | Unisex | |
| Kitkat | | Unisex | Hebrew |