Demogorgon

In the Dungeons & Dragons fantasy role-playing game, Demogorgon is a powerful demon prince. He is known as the Prince of Demons, a self-proclaimed title he holds by virtue of his power and influence; which in turn, is a title acknowledged by both mortals and his fellow demons. Demogorgon was also named as one of the greatest villains in D&D history by the final issue of Dragon.

Demogorgon is based on the invented, supposedly pagan god or demon Demogorgon, which was first spoken of by Christian scholars as a being whose very name is taboo. A creature named Demogorgon is featured in John Milton's Paradise Lost, Lodovico Ariosto's Orlando Furioso, Spenser's Faerie Queene and Percy Bysshe Shelley's Prometheus Unbound, although the D&D Demogorgon's appearance and history may not be based on any of these sources.

Demogorgon first appeared in the D&D game in Eldritch Wizardry (1976).

Demogorgon appeared in the original Monster Manual (1977).