Likely a modern form related to Dallan or Dalton, with surname and place-name associations.
Dallon is a name that blends the textures of the English and Irish naming traditions, most closely related to Dalton — an Old English surname derived from a place name meaning 'valley settlement' or 'the farm in the dale.' Dalton was carried westward through the great migrations of the nineteenth century and became particularly associated with the American frontier, partly through the Dalton Gang, the notorious outlaw brothers who terrorized Kansas and Oklahoma in the 1890s before a disastrous bank robbery in Coffeyville ended most of their careers. That Wild West association gives the name cluster a rugged, open-country energy.
The Dallon spelling introduces possible Irish resonance, gesturing toward names like Dillon, which derives from the Anglo-Norman *de Leon* or from the Irish *Diolún*, possibly meaning 'like a lion' or simply serving as a Gaelic adaptation of the Norman surname. Irish-American families in the nineteenth and twentieth centuries frequently adopted and adapted Norman surnames as given names, creating a rich hybrid tradition. Dallon sits in this creative middle space — recognizable enough to feel grounded, spelled distinctively enough to feel chosen.
In contemporary culture, the name gained modest visibility through Dallon Weekes, the bassist and vocalist for the band Panic! at the Disco during its influential mid-2010s period, bringing the name into the orbit of indie pop and its dedicated fanbase. The double-'l' spelling gives it a slight visual elegance while keeping the pronunciation identical. Parents drawn to Dallon often appreciate names that feel Western and spacious — names that seem to belong to someone equally comfortable on a trail and in a city, carrying old land in a new life.