| Name | Meaning | Gender | Origin |
|---|
| Harrod | Heroic | Unisex | Hebrew |
| Hershel | deer | Male | Hebrew |
| Hezekiah | God is my strength
| Male | Hebrew |
| Hieremias | God will uplift
| Male | |
| Hiram | Exalted
| Male | Hebrew |
| Hod | Hooded
| Male | |
| Ian | Form of John | Male | Scottish |
| Ichabod | Glory has Departed | Male | Hebrew |
| Ike | Hebrew, laughter | Male | English |
| Ilia | The Lord Is My God | Unisex | Slavic |
| Ilya | the Lord is my God | Male | Russian |
| Ira | watchful, descendant | Male | Hebrew |
| Iris | rainbow, a play of colours | Female | |
| Isaac | laughing one | Male | Hebrew |
| Isabel | concecrated to God | Female | Spanish |
| Isabella | pledged to God | Female | Spanish |
| Isabelle | pledged to God | Female | |
| Isaiah | salvation of the Lord | Male | Hebrew |
| Isha | one who protects | Female | English |
| Ishmael | outcast | Male | Hebrew |
| Ismael | Hebrew, God will hearken; Arabic, outcast | Male | Spanish |
| Ivan | Form of John | Male | Russian |
| Ivana | God is gracious | Female | Feminine |
| Izabella | Spanish and Italian variation of Elizabeth, Hebrew, pledged to God | Female | English |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |