| Name | Group | Language of Origin | Languages of Use | Meaning/Translation or Related Words | US 2024 |
| Juni | Junia | Latin | Scandinavian | | |
| Junia | Junia | Latin | English | | |
| Jupp | Joseph/Josepha | Hebrew | German | He (God) will add | |
| Jussi | John/Johanna | Hebrew | Finnish | Yahweh is gracious | |
| Jusuf | Joseph/Josepha | Hebrew | Arabic | He (God) will add | |
| Juuso | Joseph/Josepha | Hebrew | Finnish | He (God) will add | |
| Kaapo | Gabriel/Gabriele | Hebrew | Finnish | strong man of God, hero of God; God is my hero | |
| Kacper | Jasper | Old Persian | Polish | treasurer | |
| Karma | Carmine/Carmen | Hebrew | English | Words: fruit garden, fruitful land / song | |
| Karsta | Christian/Christine | Latin | German, Low German | Christian, disciple of Christ | |
| Karsten | Christian/Christine | Latin | German, Low German | Christian, disciple of Christ | |
| Kaspar | Jasper | Old Persian | German | treasurer | |
| Kasper | Jasper | Old Persian | Polish | treasurer | |
| Kersten | Christian/Christine | Latin | German, Low German | Christian, disciple of Christ | |
| Kerstin | Christian/Christine | Latin | Scandinavian | Christian, disciple of Christ | |
| Kiersten | Christian/Christine | Latin | Scandinavian, English | Christian, disciple of Christ | |
| Kim | Joachim/Joaquina | Hebrew | Scandinavian | Yahweh will establish | |
| Kiril | Cyrill/Cyrielle | Old Greek | Bulgarian | Words: lord | |
| Kirill | Cyrill/Cyrielle | Old Greek | Russian | Words: lord | |
| Kirill | Cyrill/Cyrielle | Old Greek | Estonian | Words: lord | |
| Kirsten | Christian/Christine | Latin | German, Low German | Christian, disciple of Christ | |
| Kirsten | Christian/Christine | Latin | German, Low German, Scandinavian | Christian, disciple of Christ | |
| Kirstie | Christian/Christine | Latin | English, Scottish | Christian, disciple of Christ | |
| Kirstin | Christian/Christine | Latin | German, Scandinavian | Christian, disciple of Christ | |
| Kirsty | Christian/Christine | Latin | English, Scottish | Christian, disciple of Christ | |
| Kleopas | Cleopas/Cleopha | Old Greek | German | glory of the father | |
| Kleopha | Cleopas/Cleopha | Old Greek | German | glory of the father | |
| Kleophea | Cleopas/Cleopha | Old Greek | German | glory of the father | |
| Kolumban | Columbano | Latin | German | dove | |
| Kris | Christoph | Old Greek | German, English | carrying Christ | |
| Kris | Christian/Christine | Latin | German, English | Christian, disciple of Christ | |
| Krista | Christian/Christine | Latin | German, Scandinavian | Christian, disciple of Christ | |
| Kristen | Christian/Christine | Latin | Scandinavian | Christian, disciple of Christ | |
| Kristers | Christian/Christine | Latin | Latvian | Christian, disciple of Christ | |
| Kristi | Christian/Christine | Latin | English | Christian, disciple of Christ | |
| Kristian | Christian/Christine | Latin | Scandinavian | Christian, disciple of Christ | |
| Kristian | Christian/Christine | Latin | English | Christian, disciple of Christ | |
| Kristie | Christian/Christine | Latin | English | Christian, disciple of Christ | |
| Kristiina | Christian/Christine | Latin | Finnish | Christian, disciple of Christ | |
| Kristijan | Christian/Christine | Latin | Slavic | Christian, disciple of Christ | |
| Kristin | Christian/Christine | Latin | Scandinavian | Christian, disciple of Christ | |
| Kristín | Christian/Christine | Latin | Icelandic | Christian, disciple of Christ | |
| Kristina | Christian/Christine | Latin | Scandinavian | Christian, disciple of Christ | |
| Kristína | Christian/Christine | Latin | Slovak | Christian, disciple of Christ | |
| Kristine | Christian/Christine | Latin | Scandinavian | Christian, disciple of Christ | |
| Kristinn | Christian/Christine | Latin | Icelandic | Christian, disciple of Christ | |
| Kristjan | Christian/Christine | Latin | Estonian | Christian, disciple of Christ | |
| Kristján | Christian/Christine | Latin | Icelandic | Christian, disciple of Christ | |
| Kristof | Christoph | Old Greek | Scandinavian | carrying Christ | |
| Kristóf | Christoph | Old Greek | Hungarian | carrying Christ | |
| Kristofer | Christoph | Old Greek | Scandinavian, English | carrying Christ | |
| Kristófer | Christoph | Old Greek | Icelandic | carrying Christ | |
| Kristoffer | Christoph | Old Greek | Scandinavian | carrying Christ | |
| Kristopher | Christoph | Old Greek | English | carrying Christ | |
| Kristy | Christian/Christine | Latin | English | Christian, disciple of Christ | |
| Kristyn | Christian/Christine | Latin | English | Christian, disciple of Christ | |
| Kristýna | Christian/Christine | Latin | Czech | Christian, disciple of Christ | |
| Krisztián | Christian/Christine | Latin | Hungarian | Christian, disciple of Christ | |
| Krisztina | Christian/Christine | Latin | Hungarian | Christian, disciple of Christ | |
| Krisztofer | Christoph | Old Greek | Hungarian | carrying Christ | |
| Krysta | Christian/Christine | Latin | English | Christian, disciple of Christ | |
| Krystian | Christian/Christine | Latin | Polish | Christian, disciple of Christ | |
| Krystina | Christian/Christine | Latin | English | Christian, disciple of Christ | |
| Krystof | Christoph | Old Greek | Czech | carrying Christ | |
| Krystyna | Christian/Christine | Latin | Polish | Christian, disciple of Christ | |
| Krysztof | Christoph | Old Greek | Polish | carrying Christ | |
| Krzysztof | Christoph | Old Greek | Polish | carrying Christ | |
| Kyree | Kyrie | Old Greek | English | Lord | #801 |
| Kyrie | Kyrie | Old Greek | English | Lord | #235 |
| Kyrill | Cyrill/Cyrielle | Old Greek | German | Words: lord | |
| Kyrillus | Cyrill/Cyrielle | Old Greek | German | Words: lord | |
| Lazar | Lazarus | Hebrew | English | God has helped | |
| Lazare | Lazarus | Hebrew | Georgian | God has helped | |
| Lazaro | Lazarus | Hebrew | Spanish | God has helped | |
| Lazarus | Lazarus | Hebrew | German | God has helped | |
| Lazzaro | Lazarus | Hebrew | Italian | God has helped | |
| Leentje | Magdalena | Hebrew | Dutch | of Magdala | |
| Lena | Magdalena | Hebrew | German | of Magdala | |
| Lene | Magdalena | Hebrew | German | of Magdala | |
| Lenka | Magdalena | Hebrew | Polish, Czech | of Magdala | |
| Loek | Luke | Old Greek | Dutch | from Lucania | |
| Lois | Lois | Old Greek | Dutch, English | | |
| Loïs | Lois | Old Greek | Dutch | | |
| Lola | Dolores | Spanish | Spanish | Words: pain / pain | #272 |
| Lolita | Dolores | Spanish | Spanish | Words: pain / pain | |
| Louka | Luke | Old Greek | French | from Lucania | |
| Luc | Luke | Old Greek | French | from Lucania | |
| Luca | Luke | Old Greek | Italian | from Lucania | #23 |
| Lucas | Luke | Old Greek | Spanish, Portuguese, French, Dutch | from Lucania | #9 |
| Lucca | Luke | Old Greek | Portuguese | from Lucania | #524 |
| Luka | Luke | Old Greek | Russian | from Lucania | #94 |
| Lukacs | Luke | Old Greek | Hungarian | from Lucania | |
| Lukas | Luke | Old Greek | German, Lithuanian | from Lucania | #268 |
| Lukás | Luke | Old Greek | Czech | from Lucania | |
| Lukass | Luke | Old Greek | Latvian | from Lucania | |
| Lukasz | Luke | Old Greek | Polish | from Lucania | |
| Luke | Luke | Old Greek | English | from Lucania | #34 |
| Luuk | Luke | Old Greek | Dutch | from Lucania | |
| Luukas | Luke | Old Greek | Finnish | from Lucania | |
| Maciej | Matthias/Mattea | Hebrew | Polish | gift of Yahweh | |