Short form of Ronald, from Old Norse Rögnvaldr meaning 'ruler's counsel.'
Ron inhabits two very different etymological traditions simultaneously, which gives this short, punchy name unexpected depth. In English-speaking countries, Ron is almost universally understood as the diminutive of Ronald — itself from the Old Norse Rögnvaldr, a compound of regin ("advice" or "decision") and valdr ("ruler"), making it a name that means something like "ruler's counselor" or "one who decides with wisdom." It arrived in Britain with the Norse and was carried into Scotland, where it flourished.
But Ron is also an independent Hebrew name (רוֹן) meaning "joy," "song," or "shout of joy" — common in Israel across the twentieth century and still in wide use today. This Hebrew Ron carries a brightness entirely its own, unrelated to the Scandinavian tradition, and gives parents in Jewish communities a name with biblical resonance and contemporary ease. In English-speaking popular culture, Ron became ubiquitous in the mid-twentieth century — Ronald Reagan, Ron Howard, and later Ron Weasley of the Harry Potter series gave it a reliably friendly, unpretentious image.
Ron Weasley in particular cemented the name's association with loyalty, humor, and an underrated kind of quiet courage. After decades of being eclipsed by longer forms like Ronald or Ronnie, the short, direct Ron has found renewed appeal in an era that prizes economy and directness in names.