Demon is likely used as a variant of Damon, a Greek name linked to loyalty and classical legend.
Demon as a given name invites immediate reflection on the vast distance between a word's modern connotations and its ancient origins. The English word 'demon' descends from the Latin daemon, which was itself borrowed from the Greek daimōn (δαίμων) — a word that in classical Greek carried no inherently evil meaning whatsoever. A daimōn was a divine spirit, an intermediary being between gods and humans, a guiding intelligence or inner genius.
Socrates famously described his daimōn as a personal divine voice that warned him away from wrong actions — a benevolent spiritual companion, not a malevolent force. The later Christian conflation of pagan spirits with evil transformed daimōn into 'demon' in its modern, negative sense, but the original meaning was closer to 'spirit,' 'fate,' or 'divine power.' In ancient Greece, Daimon was used as an actual personal name, and variants appear in Greek mythology and historical records.
The philosophical concept was so central to Greek thought that it influenced Roman ideas of the genius — the guiding spirit of a person or place — and eventually flowed into Renaissance and Romantic ideas of artistic inspiration as something visited upon a person from outside, a divine affliction. Philip Pullman drew on this deep tradition in his 'His Dark Materials' trilogy, where every human has an external daimon that takes animal form — a powerfully sympathetic reimagining of the classical concept. As a contemporary given name, Demon appears rarely and almost exclusively in contexts where parents are either reclaiming the pre-Christian meaning, making a countercultural statement, or simply responding to the name's phonetic energy without particular reference to its semantic weight. It is an audacious choice that guarantees a lifetime of questions and reactions — a name that announces, at minimum, that its bearer comes from a family unafraid of attention.