| Name | Meaning | Gender | Origin |
|---|
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jay | jaybird | Male | Latin |
| Jean | God is gracious | Male | |
| Jeanette | French variation of Jean, God is gracious | Female | |
| Jefferson | son of Jeffrey | Male | English |
| Jennifer | white shadow, white wave | Female | Cornish |
| Jeremiah | Exalted of the Lord
| Male | Hebrew |
| Jerry | after Jerry Garcia, The Grateful Dead | Male | English |
| Jessica | God's grace | Female | Hebrew |
| Jewel | Jewel
| Female | Word |
| Jim | supplanter | Male | English |
| Jip | | Male | |
| Jo | Variation of Johanna, God is gracious | Female | English |
| Jonas | Dove. Variant of Hebrew Jonah.
| Male | Greek |
| Josephine | God will increase | Female | |
| 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 |
| Juliet | youthful | Female | English |
| Juno | queen of the heavens | Female | Latin |
| Jupiter | Zeus, Father | Male | Roman |
| Justine | just, true | Female | |
| Kafka | jackdaw | Male | Czech |
| Kiki | From Enriqueta - Pet | Female | |
| Kiki | From Enriqueta - Pet | Female | |