| Name | Meaning | Gender | Origin |
|---|
| Hope | Hope
| Female | |
| Imogen | beloved child | Female | Celtic |
| Isabel | concecrated to God | Female | Spanish |
| Jackie | supplanter | Female | English |
| Jana | Feminine variation of John | Female | Czech |
| Janet | Variant of Jane | Female | English |
| Jaromir | Spring, Favor | Unisex | Czechoslovakian |
| Jean-Claude | | Unisex | Hebrew |
| Jenna | white shadow, white wave | Female | English |
| Jennie | English, God's gracious gift | Female | English |
| Jennifer | white shadow, white wave | Female | Cornish |
| Jenny | Diminutive of Jane and Jennifer.
| Female | English |
| Jenny | Diminutive of Jane and Jennifer.
| Female | English |
| Jessica | God's grace | Female | Hebrew |
| Jojo | | Female | Hebrew |
| Joris | Dutch for George | Unisex | |
| Josh | God Saves | Unisex | English |
| Joy | From Joyce - Gay and joyful | Female | Word |
| Julia | Youthful
| Female | Latin |
| Julie | Youthful: Jove's child. A feminine of Julian.
| Female | |
| Just | | Unisex | Hebrew |
| Justine | just, true | Female | |
| Kara | pure | Female | English |
| Karen | pure | Female | Danish |
| Kasey | Vigilant, Watchful | Female | English |