| Name | Meaning | Gender | Origin |
|---|
| Indra | God of rain and thunder | Female | Sanskrit |
| Inga | guarded by Ing | Female | Norse |
| Irene | Peace
| Female | Greek |
| Isabel | concecrated to God | Female | Spanish |
| Isabella | pledged to God | Female | Spanish |
| Ishmael | outcast | Male | Hebrew |
| Isis | throne | Female | Egyptian |
| Jabbar | powerful, mighty | Male | Arabic |
| Jacob | The supplanter, held by the heel | Male | Hebrew |
| James | From Jacob - To fill the place of another, supplanter. | Male | English |
| Jennifer | white shadow, white wave | Female | Cornish |
| Jessica | God's grace | Female | Hebrew |
| Joel | God is willing, Jehova is the Lord | Male | Hebrew |
| Joelle | Jehovah is God
| Female | |
| Jordan | The descending river, to flow | Male | Hebrew |
| 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 |
| Justice | Just, Fairness | Female | English |
| Justine | just, true | Female | |
| Kelly | Lively: aggressive.
| Female | Irish |
| Kendra | Blend of Ken: (royal obligation:clear water) and Sandra: (protector of man) or Andrea: (manly or masculine).
| Female | English |
| Kennedy | misshapen head | Female | Irish |
| Kim | chief | Male | English |
| Kyle | A place-name referring to the narrows: a wood or a church.
| Male | Scottish |
| Lamar | land | Male | English |