jacob - yaakov - yaaqov - yakov - etc.
janna - janai
jared - yared - jered - yered - etc.
jeremiah - yirmeyahu
jesse - yishai
jeshua - jeshuah - yeshua - yeshuah
joel - yoel
johanan - yochanan
jona - yona
jonathon - yonatan
jordan - yarden
joseph - josi - yosi - yosef
josh - joshua - yehoshua
judah - yehuda - yehudah
more J names - Hebrew - ja
more J names - Hebrew - je
more J names - Hebrew - ji
more J names - Hebrew - jo
more J names - Hebrew - ju
james - jim- jimmy - etc.
jason
jeff - jeffrey - etc.
john - johnny - jenner - jensen - etc.
more J names - non-hebrew