| Name | Meaning | Gender | Origin |
|---|
| Grizabella | | Unisex | Hebrew |
| Guido | guide, leader | Male | Italian |
| Hamlet | From the little home
| Male | Anglicized |
| Harold | Army commander.
| Male | Scandinavian |
| Harold | Army commander.
| Male | Scandinavian |
| Harpo | | Male | Hebrew |
| Hector | Tenacious
| Male | Greek |
| Henry | ruler of the home | Male | |
| Herbie | From Herbert - Brilliant warrior | Unisex | |
| Hero | demi-god | Male | Greek |
| Horace | timekeeper | Male | Latin |
| Horton | gray settlement | Male | English |
| Hubert | bright, shining intellect | Male | |
| Huey | Intelligent | Unisex | English |
| Hunter | A hunter. One who searches for something | Male | English |
| Iago | Supplanter
| Male | Welsh |
| 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 |
| James | From Jacob - To fill the place of another, supplanter. | Male | English |
| Jason | the Lord is salvation | Male | Hebrew |
| Javert | | Unisex | Hebrew |
| Jean | God is gracious | Male | |
| Jeff | pledge of peace | Male | English |
| Jeremy | God will uplift, appointed by God | Male | English |