| Name | Meaning | Gender | Origin |
|---|
| Irving | handsome, fair | Male | Scottish |
| Isaac | laughing one | Male | Hebrew |
| Isaiah | salvation of the Lord | Male | Hebrew |
| Ismael | Hebrew, God will hearken; Arabic, outcast | Male | Spanish |
| Itzy | | Unisex | Hebrew |
| Ivar | yew wood, archer | Male | Norse |
| Iverson | | Unisex | Hebrew |
| Izot | | 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 |
| Jaeger | Hunter | Unisex | German |
| Jafar | little stream | Unisex | |
| Jagger | a teamster | Male | English |
| Jake | From Jacob - To fill the place of another | Male | Hebrew |
| Jamal | beauty | Male | Arabic |
| James | From Jacob - To fill the place of another, supplanter. | Male | English |
| Jammer | | Unisex | Hebrew |
| Jarvis | driver, a conqueror | Male | English |
| Jason | the Lord is salvation | Male | Hebrew |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Javan | Son of Japtheth
| Male | Hebrew |