| Name | Meaning | Gender | Origin |
|---|
| Jonathan | God gives | Male | Hebrew |
| Jonathon | gift of Jehovah | Male | Spelling |
| Jordan | The descending river, to flow | Male | Hebrew |
| Jorge | Spanish form of George farmer
| Male | Spanish |
| Jose | Jehovah increases | Male | Spanish |
| Joseph | God will increase | Male | Hebrew |
| Josephine | God will increase | Female | |
| Joshua | God is salvation
| Male | Hebrew |
| Josie | From Josephine - She shall add. | Female | English |
| Journey | Journey | Female | English |
| Joy | From Joyce - Gay and joyful | Female | Word |
| Joyce | after James Augustine Aloysius Joyce, Irish writer and poet | Female | Latin |
| 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 |
| Julie | Youthful: Jove's child. A feminine of Julian.
| Female | |
| Juliet | youthful | Female | English |
| Juliette | youthful | Female | |
| Julio | Latin, youthful, downy-bearded | Male | Spanish |
| Julius | after Julius Caesar | Male | Latin |
| June | 6Th Month | Female | English |
| Junior | Youthful person. Used to distinguish son from father where they have the same name | Male | Latin |
| Juniper | Juniper Tree | Female | English |
| Justice | Just, Fairness | Female | English |
| Justin | just, true | Male | Latin |
| Justus | Just | Male | Roman |