| Name | Meaning | Gender | Origin |
|---|
| Horado | Spanish form of Horace timekeeper
| Male | |
| Hugo | Intelligent
| Male | Latinized |
| Igor | Scottish variation of Welsh Ifor, lord or English form of Scandinavian Ifar, yew | Male | Russian |
| Isabella | pledged to God | Female | Spanish |
| Isabelle | pledged to God | Female | |
| Isis | throne | Female | Egyptian |
| Ivy | ivy plant, a wine | Female | Plant |
| Izabella | Spanish and Italian variation of Elizabeth, Hebrew, pledged to God | Female | English |
| Jade | Jewel. Courageous and adoring.
| Female | Spanish |
| Jake | From Jacob - To fill the place of another | Male | Hebrew |
| Jakinda | Hyacinth
| Female | |
| Jayda | Green Gemstone | Unisex | English |
| Jean | God is gracious | Male | |
| Jefferson | son of Jeffrey | Male | English |
| Jess | Gift | Male | English |
| Jessica | God's grace | Female | Hebrew |
| Jojo | | Female | Hebrew |
| Jonathan | God gives | Male | Hebrew |
| Jose | Jehovah increases | Male | Spanish |
| Julia | Youthful
| Female | Latin |
| 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 |
| Julio | Latin, youthful, downy-bearded | Male | Spanish |
| Junior | Youthful person. Used to distinguish son from father where they have the same name | Male | Latin |
| Katie | Variant of Katherine. Pure.
| Female | English |
| Kelvin | name of a river; from the narrow river | Male | Scottish |