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Which god did the religious festival at Olympia honor?

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Map of southeastern Europe highlighting Greece and marking the location of Olympia with a red star, indicating its status as a World Heritage Site. Olympia is shown in the western part of the Peloponnese peninsula, surrounded by neighboring countries and nearby seas including the Ionian, Aegean, and Mediterranean. — Olympia Olympia was declared a UNESCO World Heritage site in 1989.

The religious festival held at Olympia was conducted in honor of Zeus, the chief Greek god.12

The Olympic Games were an intrinsic part of this religious observance. The site featured the Temple of Zeus, which housed the famous Statue of Zeus—one of the Seven Wonders of the Ancient World—and a great altar where animal sacrifices were made to the god.1342