| Name | Meaning | Gender | Origin |
|---|
| Huckleberry | | Male | Hebrew |
| Hugh | bright in mind and spirit | Male | English |
| Huxley | inhospitable place | Male | English |
| Iago | Supplanter
| Male | Welsh |
| Ian | Form of John | Male | Scottish |
| Ichabod | Glory has Departed | Male | Hebrew |
| Irwin | boar friend | Male | English |
| Isaac | laughing one | Male | Hebrew |
| Ishmael | outcast | Male | Hebrew |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| James | From Jacob - To fill the place of another, supplanter. | Male | English |
| Jarvis | driver, a conqueror | Male | English |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jay | jaybird | Male | Latin |
| Jean | God is gracious | Male | |
| Jefferson | son of Jeffrey | Male | English |
| Jeremiah | Exalted of the Lord
| Male | Hebrew |
| Jerry | after Jerry Garcia, The Grateful Dead | Male | English |
| Jim | supplanter | Male | English |
| Jip | | Male | |
| Jonas | Dove. Variant of Hebrew Jonah.
| Male | Greek |
| Julian | Jove's child. Form of Julius and family clan name of several powerful Roman emperors. Biblical Roman centurion Julius saved Paul's life during a hazardous voyage
| Male | English |