Jon is simply a different spelling for John. The Spanish name for John is Juan (pronounced Huan).
Jon Vomit's birth name is Worthley, Jon.
Jon Pollak's birth name is Jon Pollak.
Jon Cavaiani's birth name is Jon Robert Cavaiani.
Anand Jon's birth name is Anand Jon Alexander.
Jon Ryan Sugimoto's birth name is Jon Ryan Sugimoto.
Jon Brion's birth name is Jon Wright Brion.
Jon Reuning's birth name is Jonathan Reuning.
Jon Vomit's birth name is Worthley, Jon.
Jon Pollak's birth name is Jon Pollak.
Jon Maiullo's birth name is Jon Dickerson.
Jon Jon Snipes's birth name is John Ralph Snipes Jr..
Jon Cosham's birth name is Jon Russell Cosham.
Jon Corzine's birth name is Jon Stevens Corzine.
Jon Runyan's birth name is Jon Daniel Runyan.
Jon Tanis's birth name is Jon Michael Tanis.
Jon Trapnell's birth name is Jon Charles Trapnell.
Jon Vickers's birth name is Jon S. Vickers.