Zeus is the sky and thunder god in ancient Greek religion, who rules as king of the gods of Mount Olympus. His name is cognate with the first element of his Roman equivalent Jupiter. Zeus is the child of Cronus and Rhea, the youngest of his siblings to be born. In most traditions, he is married to Hera.

Zeus was also infamous for his erotic escapades. These resulted in many divine and heroic offspring, including Athena, Apollo, Artemis, Hermes, Persephone, Dionysus, Perseus, Heracles, Helen of Troy, Minos, and the Muses.

The major center where all Greeks converged to pay honor to their chief god was Olympia. Their quadrennial festival featured the famous Games. There was also an altar to Zeus made not of stone, but of ash, from the accumulated remains of many centuries' worth of animals sacrificed there.

Greeks were unanimous in recognizing the birthplace of Zeus as Crete.

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