| Name | Meaning | Gender | Origin |
|---|
| Huxley | inhospitable place | Male | English |
| Ida | prosperous | Female | |
| Imogen | beloved child | Female | Celtic |
| Inez | pure, virginal | Female | Portuguese |
| Iris | rainbow, a play of colours | Female | |
| Isabel | concecrated to God | Female | Spanish |
| Isadora | gift of the moon | Female | Greek |
| Ivan | Form of John | Male | Russian |
| Ivy | ivy plant, a wine | Female | Plant |
| Jace | Hebrew, the Lord is salvation | Male | Hebrew |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jagger | a teamster | Male | English |
| Jane | gracious, merciful, God is gracious | Female | English |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jennifer | white shadow, white wave | Female | Cornish |
| Jessica | God's grace | Female | Hebrew |
| Jett | Jet Black Gem | Male | English |
| Joel | God is willing, Jehova is the Lord | Male | Hebrew |
| John | God is merciful | Male | Hebrew |
| Jonas | Dove. Variant of Hebrew Jonah.
| Male | Greek |
| Julian | Jove's child. Form of Julius and family clan name of several powerful Roman emperors. Biblical Roman centurion Julius saved Paul's life during a hazardous voyage
| Male | English |
| Julius | after Julius Caesar | Male | Latin |