| Name | Meaning | Gender | Origin |
|---|
| Isabel | concecrated to God | Female | Spanish |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jaguar | Large Spotted Feline | Male | English |
| James | From Jacob - To fill the place of another, supplanter. | Male | English |
| Jane | gracious, merciful, God is gracious | Female | English |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jeb | beloved friend | Male | English |
| Jed | the hand | Male | English |
| Jeremiah | Exalted of the Lord
| Male | Hebrew |
| Jessamine | Jasmine | Female | French |
| Jesse | wealthy | Male | Hebrew |
| Jim | supplanter | Male | English |
| Josephine | God will increase | Female | |
| Kit | Nickname for Christopher. Frontiersman Kit Carson.
| Male | English |
| Lee | Healer
| Male | English |
| Lemur | | Unisex | |
| Lenora | Italian diminutive of Eleonora or Eleanor, meaning unknown | Female | English |
| Leopard | | Unisex | Hebrew |
| Levi | United | Male | Hebrew |
| Lion | Lion | Unisex | English |
| Lorraine | From Lorraine
| Female | |
| Lucy | light: illumination.
| Female | English |