| Jaakko | Janet | Jeanette | Jim | Jonah | Josh | Juline |
| Jaakob | Janette | Jeanine | Jimi | Jonas | Joshua | Julio |
| Jaakoppi | Janfried | Jeanne | Jimmie | Jonat | Josi | Julita |
| Jaan | Janheinz | Jeannette | Jimmy | Jonath | Josiah | Julius |
| Jaana | Jani | Jeannine | Jindrich | Jonathan | Josiane | Juliusz |
| Jabbo | Janice | Jed | Jirka | Jonathon | Josianne | Julka |
| Jacek | Janie | Jeff | Jirko | Joni | Josias | June |
| Jacenty | Janik | Jeffery | Jo | Jonko | Josie | Junia |
| Jacinta | Janika | Jeffrey | Joachim | Jonna | Josina | Junior |
| Jacintha | Janina | Jehanne | Joachime | Jonne | Josip | Junus |
| Jacinthe | Janine | Jekaterina | Joakim | Jonni | Jost | Jupp |
| Jacinto | Janis | Jeldrik | Joan | Jonny | Josua | Jürg |
| Jack | Janita | Jelena | Joana | Joona | Josue | Jürgen |
| Jacki | Janka | Jelenka | Joann | Joonas | Josy | Juri |
| Jackie | Janko | Jelger | Joanna | Joonatan | Jouko | Jürn |
| Jackson | Jankó | Jemina | Joanne | Joop | Jouni | Jussuf |
| Jacky | Jann | Jenaro | Joaquin | Joord | Jourdain | Just |
| Jaclyn | Janna | Jendrik | Jobst | Joosef | Jousia | Justa |
| Jacob | Janne | Jenifer | Joceline | Jooseppi | Jovan | Justice |
| Jacquelin | Jannette | Jenna | Jocelyn | Joost | Jovanka | Justin |
| Jacqueline | Jannik | Jennell | Jochem | Jordaan | Jovita | Justina |
| Jacquelyn | Jannina | Jenni | Jochen | Jordan | Joy | Justine |
| Jacques | Janning | Jennie | Jochim | Jordi | Joyce | Justinian |
| Jacub | Jannis | Jennifer | Jockel | Jordon | Juan | Justinus |
| Jada | Janno | Jenning | Jocki | Jorg | Juana | Justus |
| Jade | Jano | Jenny | Jocky | Jörg | Juanita | Jusuf |
| Jaden | Janos | Jens | Joder | Jorge | Juanito | Juta |
| Jadon | János | Jephta | Jodi | Jorgen | Juanna | Juthe |
| Jago | Janpeter | Jerald | Jodie | Jörgen | Judas | Jutta |
| Jahn | Jantina | Jere | Jodokus | Jori | Judd | Jutte |
| Jaime | Jared | Jeremiah | Jody | Jorin | Judica | Juuso |
| Jake | Jari | Jeremias | Joe | Jorina | Judie | |
| Jakob | Jarkko | Jérémie | Joë | Jorinde | Judit | |
| Jakoba | Jarmo | Jeremy | Joel | Jorinna | Judita | |
| Jakobea | Jarno | Jerg | Joelle | Joris | Judith | |
| Jakobina | Jaro | Jerk | Joey | Jorit | Juditha | |
| Jakobine | Jaromir | Jerker | Jofried | Jork | Judy | |
| Jakobus | Jaroslaw | Jermaine | Johan | Jorma | Judyta | |
| Jakov | Jarred | Jerome | Johann | Jorn | Juha | |
| Jakub | Jarrett | Jérôme | Johanna | Jörn | Juhana | |
| Jalal | Jarrod | Jeronimo | Johanne | Jorrit | Juhani | |
| Jalen | Jarvis | Jeronimus | Johannes | Jos | Juho | |
| Jalila | Jascha | Jerrit | Johannetta | Joscha | Jul | |
| Jalo | Jasir | Jerry | Johannette | Jose | Jula | |
| Jam | Jasira | Jesko | Johanno | José | Jule | |
| Jamal | Jasmin | Jesper | John | Josée | Jules | |
| James | Jasmine | Jess | Johnathan | Josef | Juli | |
| Jamey | Jasmina | Jesse | Johnathon | Josefa | Julia | |
| Jami | Jasminde | Jessi | Johnnie | Josefiina | Juliaana | |
| Jamie | Jason | Jessica | Johnny | Josefina | Julian | |
| Jamil | Jasper | Jessie | Johnson | Josefine | Juliana | |
| Jamila | Javier | Jessika | Johst | Josel | Juliane | |
| Jamin | Jay | Jessy | Joke | Joselyn | Julianna | |
| Jamison | Jaya | Jethro | Joky | Joseph | Julianne | |
| Jamo | Jayden | Jetta | Jolana | Josepha | Julianus | |
| Jan | Jayla | Jette | Jolanda | Josèphe | Julie | |
| Jana | Jayson | Jewel | Jolande | Josephin | Julien | |
| Janacek | Jazmin | Jewell | Jolanta | Josephine | Julienne | |
| Jane | Jazmine | Jill | Jolene | Joséphine | Juliet | |
| Janek | Jean | Jillian | Jon | Josette | Juliette |