| Name | Meaning | Gender | Origin |
|---|
| Ian | Form of John | Male | Scottish |
| Irma | universal, complete | Female | |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jacob | The supplanter, held by the heel | Male | Hebrew |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jesse | wealthy | Male | Hebrew |
| John | God is merciful | Male | Hebrew |
| Joseph | God will increase | Male | Hebrew |
| Joy | From Joyce - Gay and joyful | Female | Word |
| Joyce | after James Augustine Aloysius Joyce, Irish writer and poet | Female | Latin |
| Kasper | treasurer | Male | Persian |
| Klaus | Scandinavian and German variation of Nicolas | Male | |
| Lazar | God Is My Helper | Unisex | Hungarian |
| Lazaro | God Is My Helper | Male | Italian |
| Lazarus | God's help | Male | Greek |
| Leah | cow, weary one; glad tidings; mistress, ruler | Female | Hebrew |
| Lena | Alluring, Temptress, Light | Female | Greek |
| Lester | Fortified place.
| Male | English |
| Letty | Latin, joy, gladness | Female | English |
| Levi | United | Male | Hebrew |
| Lina | tender | Unisex | |
| Loretta | Pure
| Female | English |