The Greatest Betrayals in Greek Mythology

When Trust Was Broken

Betrayal is one of the most powerful themes in Greek mythology. The myths are full of broken promises, violated hospitality, and treachery that echoed through generations.

Clytemnestra's murder of Agamemnon is the defining betrayal — she killed her husband in vengeance for his sacrifice of their daughter Iphigenia. But was it betrayal or justice? Medea's murder of her own children to punish Jason's abandonment remains the most horrifying act of vengeance in mythology. Theseus abandoned Ariadne on Naxos after she helped him escape the Labyrinth — a betrayal so cold that Dionysus himself took pity and married her. Zeus broke faith with virtually every agreement he made, yet punished mortals severely for the same behavior. The gods' treatment of Prometheus — chaining him to a rock for eternity for the crime of helping humanity — represents the ultimate betrayal by those in power against those who serve them.