Jacob
Jacques
Jago
Jakob
Jakobus
Jakub
Jamell
James
Jan
Janek
Janek
Janik
Janin
Janis
Janko
Jann
Janne
Jannek
Jannes
Janni
Jannic
Jannick
Jannik
Jannis
Jano
Janosch
Janus
Jaque
Jarne
Jarno
Jarom
Jaron
Jason
Jasper
Jay
Jean
Jeannetto
Jeffry
Jeldrik
Jelko
Jendrik
Jens
Jeremias
Jérèmie
Jeremo
Jeremy
Jerome
Jesko
Jesper
Jim
Jimmy
Jo
Joachim
Jobst
Joe
Joel
Joey
Johan
Johann
Johannes
John
Jon
Jona
Jonah
Jonas
Jonathan
Jonny
Jooris
Joost
Jordan
Jorden
Jördis
Jordon
Jordy
Jörg
Jorge
Jorgen
Joris
Jörn
Jorvik
Jos
Joscha
Joschka
Joschua
José
Josef
Joseph
Joshua
Josiah
Jost
Josua
Jovin
Jules
Julian
Julien
Julius
Junias
Jupp
Jürgen
Juri
Justin
Justino
Justus