Ayrton comes from an English surname and place name meaning settlement by the river Aire or farm by the water.
Ayrton is an English surname-turned-given-name with topographic roots: it derives from Ayrton, a small settlement in the West Riding of Yorkshire, with the place name formed from the Old Norse river name Aire (possibly from a pre-Celtic word for "strong water") and Old English tūn, meaning "settlement" or "enclosure." As a surname it was uncommon but respectable Victorian-era Hertha Ayrton was a pioneering British physicist and electrical engineer, one of the first women elected to the Institution of Electrical Engineers in 1899, who made landmark contributions to the science of electric arcs.
The name's transformation into a given name of global resonance is almost entirely the work of one man: Ayrton Senna da Silva (1960–1994), the Brazilian Formula One driver widely regarded as the greatest in the history of the sport. Senna's racing was characterized by a ferocity, precision, and almost mystical commitment that transcended motorsport, making him a national hero in Brazil and an icon worldwide. His death at Imola on May 1, 1994, was mourned as a state occasion in Brazil, where three days of national mourning were declared.
In the decades since, parents across Brazil, Portugal, and the wider Portuguese-speaking world — and far beyond — have named sons Ayrton in his honor, turning a Yorkshire village name into a monument to genius and tragedy. The name now carries an almost mythological charge in motorsport culture.