| Name | Meaning | Gender | Origin |
|---|
| Jacob | The supplanter, held by the heel | Male | Hebrew |
| James | From Jacob - To fill the place of another, supplanter. | Male | English |
| Jane | gracious, merciful, God is gracious | Female | English |
| Janet | Variant of Jane | Female | English |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jean | God is gracious | Male | |
| Jennifer | white shadow, white wave | Female | Cornish |
| Joanna | after the character in The Rescuers Down Under cartoon | Female | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| Joe | Abbreviation of Joseph.
| Male | English |
| John | God is merciful | Male | Hebrew |
| Joseph | God will increase | Male | Hebrew |
| Josephine | God will increase | Female | |
| Joshua | God is salvation
| Male | Hebrew |
| Julia | Youthful
| Female | Latin |
| Katherine | Pure. Used since third century A.D. Early Latin forms Katerina and Caterina became Katharine and Catherine. French Cateline and English Catlyn came into wider use during medieval period when variants multiplied.
| Female | Greek |
| Lance | knight's attendant; land | Male | English |
| Laura | bay laurel | Female | Latin |
| Laurel | Laurel
| Female | Latin |
| Leo | Lion.
| Male | Latin |
| Linda | pretty | Female | |
| Lorna | of Lorne | Female | English |
| Louis | famed warrior | Male | |