| Name | Meaning | Gender | Origin |
|---|
| Jake | From Jacob - To fill the place of another | Male | Hebrew |
| Jane | gracious, merciful, God is gracious | Female | English |
| Jeff | pledge of peace | Male | English |
| Jemima | dove | Female | Hebrew |
| Jennifer | white shadow, white wave | Female | Cornish |
| Jessica | God's grace | Female | Hebrew |
| Jim | supplanter | Male | English |
| Jimmy | supplanter | Male | English |
| Jo | Variation of Johanna, God is gracious | Female | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| John | God is merciful | Male | Hebrew |
| Jonathan | God gives | Male | Hebrew |
| Jones | God Will Bring | Male | Welsh |
| Jordan | The descending river, to flow | Male | Hebrew |
| Joseph | God will increase | Male | Hebrew |
| Jules | youthful; soft, downy | Male | |
| Kate | Pure | Female | English |
| Kincaid | | Unisex | Hebrew |
| Kinsey | victorious prince | Female | English |
| Kojak | | Male | Hebrew |
| Lancelot | Knight of Arthur and lover of Guinevere
| Male | |
| Langston | Town Of The Giant | Male | English |
| Laura | bay laurel | Female | Latin |
| Lewis | Renowned fighter. Form of Louis.
| Male | English |