I found a few names: Jinx, Jade, Jasper, Jet, Jasmine and Jayla
jane, janet, julia, juliet, jasmine
Gretel
The modern name for a boy beginning with j is JASVINDER
jade jewel
Jason priestly
Jacket!
Jordan
Jane
jinn
There are none.
jet plane
Jarrow is a town in England. It begins with the letter J.
That would be a juniper tree.