The Graeae (English translation: "old women", "grey ones", "grey sisters", or "grey witches"; alternatively spelled Graiai (Γραῖαι) and Graiae) were three sisters who shared one eye and one tooth among them. They are one of several trios of archaic goddesses in Greek mythology. The Graeae were daughters of Phorcys and Ceto. Thus, they were among the Phorcydes, all of which were either aquatic (sea-based) or chthonic (earth-based) deities. The Graiae were sisters to the Gorgons. The Graeae took the form of old grey-haired women; though, at times poets euphemistically described them as "beautiful." In other legends they are described as being half-swan.

Dans la mythologie grecque, les Grées (en grec ancien  / Graiai, « Vieilles femmes ») sont trois sœurs, Dino (ou Deino ou Persis), Ényo et Péphrédo (ou Porphrédo ou Pemphrédo), filles aînées de Phorcys et de Céto. Elles sont aussi appelées Graies ou Sœurs Grises.