I
Ian
Ilaj
Ilias
Isaac
Ivan

J
Jace
Jack
Jacob / Jakob
Jaden
Jamal
James
Jamie
Jan
Janeck
Janik / Jannik
Jannis
Jason
Jasper
Jean
Jeff
Jeremias
Jeremy
Jerome
Jerry
Jim
Jimmy
Jo
Joe
Joel
Joey
Johann /Johan
Joahnes / Johannes
John
Johnny
Jonah
Jonas
Joony
Jordan
Joris
Joschka
Josh
Joshua
Josua
Julian
Julien
Julius
Justin
Justus

K
Kaden
Karl
Karlo
Kasper
Kenneth
Kenny
Kevin
Kian
Kili
Kilian
Kim
Kirlon
Klaas
Klaus
Kolja
Konrad
Konsti
Konstantin
Kurt

L
Lars
Laslo
Lasse f
Laurenz
Laurin
Lawrence
Lean
Leander
Lennard / Lennart
Lennox
Lenny
Leo
Leon
Leonard
Leonardo
Leopold
Levi
Levin
Liam
Lias
Linus
Lionel
Lorenz
Louis/ Luis
Luan
Luc/ Luke
Luca
Lucas/ Lukas
Lucian
Lucius