| Name | Meaning | Gender | Origin |
|---|
| Hannah | From Anne - Full of grace of God | Female | Hebrew |
| Hunter | A hunter. One who searches for something | Male | English |
| Iniki | | Unisex | Hebrew |
| Irving | handsome, fair | Male | Scottish |
| Isabella | pledged to God | Female | Spanish |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jackie | supplanter | Female | English |
| Jacob | The supplanter, held by the heel | Male | Hebrew |
| Jade | Jewel. Courageous and adoring.
| Female | Spanish |
| Jadelyn | | Unisex | Hebrew |
| Jake | From Jacob - To fill the place of another | Male | Hebrew |
| James | From Jacob - To fill the place of another, supplanter. | Male | English |
| Jamie | Feminine of James | Female | Scottish |
| Jasmine | Flower
| Female | Persian |
| Jeff | pledge of peace | Male | English |
| Jenna | white shadow, white wave | Female | English |
| Jessica | God's grace | Female | Hebrew |
| Jessie | wealthy | Female | Anglicized |
| Jillian | Jove's child. Variant of Gillian from the masculine Julian.
| Female | Phonetic |
| Joanna | after the character in The Rescuers Down Under cartoon | Female | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| John | God is merciful | Male | Hebrew |
| Jonathan | God gives | Male | Hebrew |