| Name | Meaning | Gender | Origin |
|---|
| Horatio | hour, time | Male | English |
| Hugh | bright in mind and spirit | Male | English |
| Hugo | Intelligent
| Male | Latinized |
| Humphrey | peaceful warrior | Male | |
| Ian | Form of John | Male | Scottish |
| Iphegenia | | Unisex | Hebrew |
| 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 |
| Jacob | The supplanter, held by the heel | Male | Hebrew |
| Jago | A character in a Victorian book who battled against the odds | Male | Spanish |
| James | From Jacob - To fill the place of another, supplanter. | Male | English |
| Jameson | son of James | Male | English |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jefferson | son of Jeffrey | Male | English |
| Jeremiah | Exalted of the Lord
| Male | Hebrew |
| Jeremy | God will uplift, appointed by God | Male | English |
| Joel | God is willing, Jehova is the Lord | Male | Hebrew |
| John | God is merciful | Male | Hebrew |
| Jonah | Dove. In the bible Jonah was on board a ship God caused to sink: sailors traditionally use the name Jonah to personify someone who brings bad luck.
| Male | Hebrew |
| Jonathan | God gives | Male | Hebrew |
| Joseph | God will increase | Male | Hebrew |
| Jules | youthful; soft, downy | Male | |