In Greek mythology the Erinyes (Ερινύες) or Eumenides (or Furies in Roman mythology) were female personifications of vengeance. When a formulaic oath in the Iliad (iii.278ff; xix.260ff) invokes "those who beneath the earth punish whoever has sworn a false oath." The Erinyes are simply an embodiment of the act of self-cursing contained in the oath" (Burkert 1985 p 198). They were usually said to have been born from the blood of Ouranos when Cronus castrated him. According to a variant account, they issued from an even more primordial level—from Nyx, "Night". Their number is usually left indeterminate. Virgil, probably working from an Alexandrian source, recognized three: Alecto ("unceasing," who appeared in Virgil's Aeneid), Megaera ("grudging"), and Tisiphone ("avenging murder"). Dante followed Virgil in depicting the same three-charactered triptych of Erinyes. The heads of the Erinyes were wreathed with serpents (compare Gorgon), their eyes dripped with blood, and their whole appearance was horrific and appalling. Sometimes they had the wings of a bat or bird, or the body of a dog.

The Erinyes often stood for the rightness of things within the standard order; for example, Heraclitus declared that if Helios decided to change the course of the Sun through the sky, they would prevent him from doing so. However, they were predominantly understood as the persecutors of mortal men and women who broke "natural" laws. In particular, those who broke ties of kinship through murdering a father (patricide), murdering a brother (fratricide), or other such familial killings brought special attention from the Erinyes. It was believed in early epochs that human beings might not have the right to punish such crimes, instead leaving the matter to the dead man's Erinyes to exact retribution.

The Erinyes were connected with Nemesis as enforcers of a just balance in human affairs. The goddess Nike originally held a similar role as the bringer of a just victory. When not stalking victims on Earth, the Furies were thought to dwell in Tartarus where they applied their tortures to the damned souls there.

The Erinyes are particularly known for the persecution of Orestes for the murder of his mother, Clytemnestra. Since Apollo had told Orestes to kill the murderer of his father, Agamemnon, and that person turned out to be his mother, Orestes prayed to him. Athena intervened and the Erinyes turned into the Eumenides ("kindly ones"), as they were called in instances portraying their more positive, beneficial qualities.

Nonetheless, many scholars believe that when they were originally referred to as the Eumenides, it was not to reference their good sides but as a euphemism to avoid the wrath that would ensue from calling them by their true name. The taboo in speaking the names of certain uncanny spirits included Persephone, and there are parallels in many cultures (for instance, the tendency to refer to faeries as "the fair folk" or "the little people"). The Erinyes might also be recognized as Semnai ("the venerable ones"), the Potniae ("the Awful Ones"), the Maniae ("the Madnesses") and the Praxidikae ("the Vengeful Ones").

Another myth says that the Erinyes struck the magical horse Xanthus dumb for rebuking Achilles.

The Furies (their Roman name) or Dirae ("the terrible") typically had the effect of driving their victims insane, hence their Latin name furor.

• In The Divine Comedy Dante sees the Erinyes at the gates of the city of Dis, which is the entry point to the four lower circles of Hell.
• Troilus invokes Mars and the furies in the first book of Chaucer's Troilus and Criseyde: "O dispitouse Marte, O Furies three of helle, on yow I crye!".
• 1862 - William-Adolphe Bouguereau portrays the Erinyes/Furies in "The Remorse of Orestes/Orestes driven Mad by the Furies".
• Leconte de Lisle's tragedy "Les Érinnyes" (1872), with accompanying music composed by Massenet.
• 1943 - Jean-Paul Sartre's The Flies (Les Mouches) uses a retelling of the Oresteia (with the titular Flies being the Furies) in a modern perspective against religion ^[1].
• Francis Bacon's Three Studies for Figures at the Base of a Crucifixion, 1944, depicts three anthropomorphic creatures based on the furies.

• David Weber has written a science fiction novel, Path of the Fury, in which the last remaining Fury, Tisiphone, helps a soldier to obtain vengeance. It was later rewritten and expanded as In Fury Born.
• Salman Rushdie references the three furies in his 2001 work Fury.
• In The Witches of Bailiwick by Sandra Forrester, Beatrice Bailiwick and her friends have to escape the Furies, ghostly figures whose touch can kill.
• Orson Scott Card's "Eumenides in the Fourth Floor Lavatory", reprinted in Masterpieces of Terror and the Supernatural, recounts the price paid for violating a natural law.
• In the novel The Lightning Thief by Rick Riordan, where they are mentioned and appear several times.
• In the book The Secret History by Donna Tartt, the Erinyes are described as turning 'up the volume of the inner monologue... made people so much themselves that they couldn't stand it'. Page 39 (Publisher Penguin London 1992)
• The title of Jonathan Littell's 2006 novel Les Bienveillantes ("The kindly ones") ominously evokes the Erinyes' placative name.
• In a series of Star Trek novels, the Furies are a race of fearsome-looking aliens whose dominion of several worlds, including Earth, Vulcan and Qo'Nos led to legends of demons and monsters including the Erinyes.

• Neil Gaiman's ninth volume of The Sandman (Vertigo), entitled The Kindly Ones (1996) revolves around a young woman seeking out the Erinyes for vengeance for the murder of her son. They also appear in many of the other Sandman story arcs, including "The Dolls House".(1989)
• The DC Comics character Fury (Helena Kosmatos) received her powers from Tisiphone.

• French philosopher, playwright and activist Hélène Cixous re-awakened the Furies in her play The Perjured City or The Awakening of the Furies for theatre company Théâtre du Soleil
• The Furies are personifications of the protagonist's mental illnesses in the play The Insanity of Mary Girard by Lanie Robertson.

• The Furies are mentioned by the lead character in the film - An American Haunting (2006).
• The Furies are portrayed as a baseball loving gang in The Warriors (film), except they are called the Baseball Furies.

• The Furies are portrayed by Asa Lindh, Celi Foncesca, Annmarie Dennis, Graciela Heredia, and Smeta Choto in Xena: Warrior Princess.
• The Furies are also featured extensively in an episode of Charmed. (Hell Hath No Fury). There has been numerous other references to them in different episodes.
• The Furies are mentioned in an episode (Episode 3X10 - High and Low) of CSI when Warrick Brown mentions the three due to a tattoo that a suspect has
• The Furies are featured in an episode Blood Ties. (Love Hurts). A Fury is conjured by a jealous husband, and is fueled by jealousy. There are referenced as a Greek Mythology name, though Furies are the Roman mythological name for them.

• the Ohio based band Over the Rhine references the "Eumenides" in their song "Rhapsodie" (on the Patience release.)

• In Dungeons & Dragons, Erinyes are female devils who are described as possibly fallen angels.
• In the 1998 computer game, Battlezone, Greek mythology supposedly emerged through visits from an alien civilisation — the Cthonians —, the Furies being a form of weapon which they pursued.
• The Furies are also mentioned in the popular God of War video game series.
• Erinyes is the name of a heavy assault fighter in FreeSpace 2.

• Nemesis (mythology)
• Karma
• Lilith

• Iliad xiv.274-9; xix.259f.
• Virgil, Aeneid vii, 324, 341, 415, 476.
• Burkert, Walter, 1977 (tr. 1985). Greek Religion (Harvard University Press)