In Greek mythology, Peleus (/ˈpiːliəs, ˈpiːljuːs, ˈpɛliəs, ˈpɛljuːs/; Greek: Πηλεύς, Pēleus) was a hero whose myth was already known to the hearers of Homer in the late 8th century BC. Peleus was the son of Aeacus, king of the island of Aegina, and Endeïs, the oread of Mount Pelion in Thessaly. He married the sea-nymph Thetis with whom he fathered Achilles.
Peleus and his brother Telamon were friends of Heracles, and served in Heracles' expedition against the Amazons, his war against King Laomedon, and his quest for the Golden Fleece. Though there were no further kings in Aegina, the kings of Epirus claimed descent from Peleus in the historic period.