Vengeance occupies a structurally foundational position across the depth-psychology corpus, appearing not merely as a moral or legal category but as a psychic force embedded in the archaic organization of the self, the family, and the sacred. Rohde’s excavations of Greek soul-belief establish vengeance as the animating duty of the dead toward the living and of kin toward the murderer—a cosmic obligation whose neglect incites pollution and divine wrath. Nietzsche, whose Genealogy of Morals shapes much subsequent depth-psychological thinking, dissects vengeance as the hidden motor of ressentiment: the reactive, internalized, and ideologically transfigured desire for the counter-blow that underlies slave morality and the ascetic ideal. Neumann reads vengeance mythologically as the Great Mother’s retributive power against the ego that resists her dominion—a force that overwhelms heroic consciousness from below. Jung identifies a christological figure assimilated to ‘feelings of hatred and vengeance,’ warning that such a complex, when unconsciously operative, perpetuates judgment beyond necessity. Classical scholars—Konstan, Alexiou, Benveniste—anchor the semantics: the Greek poínē and its Indo-European cognates reveal that vengeance and honor (timē) share a root, suggesting that at the phylogenetic level retribution and respect are differentiated aspects of a single valuation structure. Together these voices reveal vengeance as neither simple aggression nor mere legalism, but a psychic imperative shaped by honor, pollution, ancestral obligation, and archetypal compulsion.