| Name | Meaning | Gender | Origin |
|---|
| Hayes | from the hedged place | Male | English |
| Hemingway | | Male | Hebrew |
| Hieronymous | sacred name | Male | Greek |
| Holmes | From the river island
| Male | English |
| Horatio | hour, time | Male | English |
| Irish | People of Ireland. Also lucky - "The Luck of the Irish". | Unisex | |
| Ivory | The hard, smooth, yellowish-white of an elephant's tusk. | Male | Word |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jackson | Son of Jack | Male | English |
| Jake | From Jacob - To fill the place of another | Male | Hebrew |
| Jeff | pledge of peace | Male | English |
| Jim | supplanter | Male | English |
| Jimmy | supplanter | Male | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| John | God is merciful | Male | Hebrew |
| Jonathan | God gives | Male | Hebrew |
| Jones | God Will Bring | Male | Welsh |
| Jordan | The descending river, to flow | Male | Hebrew |
| Joseph | God will increase | Male | Hebrew |
| Jules | youthful; soft, downy | Male | |
| Kincaid | | Unisex | Hebrew |
| Kojak | | Male | Hebrew |
| Lancelot | Knight of Arthur and lover of Guinevere
| Male | |