| Name | Meaning | Gender | Origin |
|---|
| Herman | man of the army | Male | |
| Hermione | messenger, earthly | Female | Greek |
| Honor | Honor
| Female | |
| Horace | timekeeper | Male | Latin |
| Horatio | hour, time | Male | English |
| Hortense | of the garden | Female | Latin |
| Hugh | bright in mind and spirit | Male | English |
| Hugo | Intelligent
| Male | Latinized |
| Humphrey | peaceful warrior | Male | |
| Hyacinth | after the character in the sitcom Keeping Up Appearances | Female | |
| Ian | Form of John | Male | Scottish |
| Imogen | beloved child | Female | Celtic |
| India | Of India | Female | English |
| Ingrid | Ing's ride | Female | Norse |
| Iphegenia | | Unisex | Hebrew |
| Isabel | concecrated to God | Female | Spanish |
| Isabella | pledged to God | Female | Spanish |
| Isadora | gift of the moon | Female | Greek |
| 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 |
| Jacqueline | Feminine form of Jacques
| Female | |
| 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 |