LN: Jaeger, Jennrich, Jónás, Jadik, Janacek, Jepson
MN: Jennings, Jurkoska, Jenkins, Jossart, Juergens, Jeffries, Julliard
DH: FN: Jack, Jonah, Jethro, Jeriah, Jeremy MN: Johannes, Joseph, Josias, Joel, Jerome
DW: FN: Jacobina, Jacqueline, Jadzia, Jonie, Jeana MN: Joyce, Jillian, Janelle, Jada, Janice
DD: FN: Janey, Junia, Jeri, Jelena, Jessenia MN: Jessica, Julie, June, Jaime, Jaquette
DS: FN: Jared, Jarek, Jordan, Joshua, Judah MN: Jules, Jacques, Jackson, Jaxon, Jeannot
DS: FN: Jed, Jeb, Julien, Julius, Jasper MN: Jeffrey, Jericho, Jalen, Januarius, Jarvis
DD: FN: Josefina, Jessamine, Juno, Jennie, Janessa MN: Jessa, Jamesina, Jael, Jane, Jana
DS: FN: Jeremias, Jeremiah, Jedidiah, Jonathan, Jaochim MN: Justin, Jett, Josiah, Judas, Jean-Baptiste
DD: FN: Jennifer, Jade, Jasmine, Jezebel, Josie MN: Jewel, Jody, Jolene, Juliet, Joy
DD/DS: FN: Jaslyn, Juliana, Janet, Jaleh, Jalilah MN: Jasminka, Jolie, Juniper, Justine, Jaya / DS: FN: Jesse, Joaqin, Jason, Jens, Jacenty MN: Jaden, Jafar, Jupiter, Jovan, Janus