In Roman mythology, Evander (from Greek Εὔανδρος Euandros, "good man" or "strong man": a spelling and etymology affected by poets to emphasize the hero's virtue), also spelled Euander, was a deific culture hero from Arcadia, Greece, who brought the Greek pantheon, laws and alphabet to Italy, where he founded the city of Pallantium on the future site of Rome, sixty years before the Trojan War. He instituted the festival of Lupercalia.
The oldest tradition of its founding ascribes to Evander the erection of the Great Altar of Hercules in the Forum Boarium. In Virgil's Aeneid, VIII, where Aeneas and his crew first come upon Evander and his people, they were venerating Hercules for dispatching the giant Cacus. Virgil's listeners would have related this scene to the same Great Altar of Hercules in the Forum Boarium of their own day, one detail among many in the Aeneid that Virgil used to link the heroic past of myth with the Age of Augustus. Also according to Virgil, Hercules was returning from Gades with Geryon's cattle when Evander entertained him. Evander then became the first to raise an altar to Hercules' heroism. This archaic altar was destroyed in the Great Fire of Rome, AD 64.
Evander was born to Mercury and Carmenta, and his wisdom was beyond that of all Arcadians. According to Virgil, previous to the Trojan War, Evander gathered a group of natives to a city he founded in Italy near the Tiber river, which he named Pallantium. Virgil states that he named the city in honor of his son, Pallas, although Pausanias, Livy and Dionysius of Halicarnassus say that Evander's birth city was Pallantium, thus he named the new city after the one in Arcadia.
Because of their traditional ties, Evander aids Aeneas in his war against Turnus and the Rutuli: the Arcadian had known the father of Aeneas, Anchises, before the Trojan War, and shares a common ancestry through Atlas with Aeneas's family. Evander plays a major role in Aeneid Book XII.
Evander was deified after his death and an altar was constructed in his name on the Aventine Hill. His son Pallas apparently died childless, leaving the natives under Turnus to ravage his kingdom; however, the gens Fabia claimed descent from Evander.