Zagreus occupies a liminal but consequential position within the depth-psychology corpus. The name designates the primordial, Orphic avatar of Dionysus — son of Zeus and Persephone, torn apart by the Titans and reconstituted — and functions in the literature less as a discrete deity than as the mythological nucleus around which themes of dismemberment, rebirth, initiation, and the indestructibility of life are organized. Kerénji treats Zagreus as coextensive with the Cretan core of Dionysian religion, locating the figure etymologically (the ‘great hunter,’ the ‘all-absorbing’) and ritually in the bull-capture and sparagmos traditions of Minoan Crete. Rohde, with his characteristic philological precision, maps the name across Orphic, Neoplatonic, and poetic sources, establishing Zagreus as the chthonic, pre-Olympian Dionysus identified with Hades. Harrison reads the Zagreus myth as a ritual text encoding tribal initiation: the killing and resurrection of the child-god provide the aetiology of mystery ceremonies involving mock death, new birth, and the authority of the Kouretes. Otto situates the dismemberment narrative within Dionysus’s irreducible identity with the life-death polarity, rejecting reductively seasonal or Osirian explanations. Jung cites the Dionysus-Zagreus identification in his analysis of the puer aeternus and the pattern of death-rebirth. Together these voices make Zagreus the mythological ground for depth psychology’s engagement with the psychology of transformation.