From a valley town; English place name combining 'dell' (valley) with 'ton' (settlement).
Delton is a given name that evolved from the English surname Dalton, itself a place-name meaning 'valley settlement' from the Old English 'dæl' (valley) and 'tun' (enclosure, farm, town). Place-name surnames migrating into first-name use was a characteristically Victorian and Edwardian fashion in Britain and North America, and Dalton — along with its phonetic variant Delton — rode that wave in the late 19th and early 20th centuries. The shift from 'a' to 'e' in Delton may reflect regional pronunciation or a deliberate effort to give the name a slightly softer, more distinctive feel.
The Dalton name was given celebrity by the English chemist John Dalton (1766–1844), who developed the first modern atomic theory and conducted pioneering research into color blindness (long called 'Daltonism' in his honor). His legacy made Dalton a name associated with scientific curiosity and methodical inquiry. The Dalton brothers — infamous American outlaws of the 1890s — added a rougher Western frontier mythology to the name, cementing its American character.
Delton specifically tends to appear in American Southern and Midwestern naming records from the early 20th century, where adding or shifting vowels to established names was a common creative practice. It carries a warm, unpretentious quality — sturdy without being heavy, distinctive without being eccentric. In recent decades, as surname-style given names have surged in popularity (Mason, Carson, Dalton itself), Delton stands as a slightly less-traveled road in the same neighborhood: a name that feels familiar on first hearing but rewards a second look.