Zeus, in ancient Greek religion, chief deity of the pantheon, a sky and weather god. His name clearly comes from that of the sky god Dyaus of the ancient Hindu Rigveda. Zeus was regarded as the sender of thunder and lightning, rain, and winds, and his traditional weapon was the thunderbolt. He was called the father (i.e., the ruler and protector) of both gods and men.
According to a Cretan myth that was later adopted by the Greeks, Cronus, king of the Titans, upon learning that one of his children was fated to dethrone him, swallowed his children as soon as they were born. But Rhea, his wife, saved the infant Zeus by substituting a stone wrapped in swaddling clothes for Cronus to swallow and hiding Zeus in a cave on Crete. After Zeus grew to manhood he led a revolt against the Titans and succeeded in dethroning Cronus, perhaps with the assistance of his brothers Hades and Poseidon, with whom he then divided dominion over the world.
In art Zeus was represented as a bearded, dignified, and mature man of stalwart build; his most prominent symbols were the thunderbolt and the eagle.