Variant of John, from Hebrew Yohanan meaning 'God is gracious.'
Jon is short, spare, and ancient beneath its modern surface. In English it is usually a variant of John, and in some cases a short form of Jonathan, though those are historically different Hebrew names. As a form of John, Jon ultimately goes back through Greek Ioannes and Latin Iohannes to the Hebrew Yohanan, meaning "Yahweh is gracious" or "God is gracious."
In the Nordic world, Jon is also connected with forms of Johannes, which helped give the spelling an independent life beyond English abbreviation. That makes Jon one of those compact names that feels contemporary but is built on very old religious and linguistic foundations. Historically, the name has moved between familiarity and distinction.
John was one of the great staple names of Europe and North America for centuries, so Jon emerged as a leaner, slightly more modern-looking alternative, especially in the twentieth century. Notable bearers and associations have helped it retain character: Jon Stewart, Jon Bon Jovi, and the fictional Jon Snow and Jon Arbuckle all give the spelling a recognizable cultural footprint. Compared with John, Jon can seem less formal and a little more streamlined, while still carrying biblical gravity in the background.
Its literary and cultural associations are broad because it stands so near to John, yet its missing "h" gives it a different tone, cleaner and more contemporary. Jon is a good example of how a minimal spelling change can shift a name’s entire personality without severing it from a very old past.