What religion is Zeus?

I understand that Zeus is a deity from ancient Greek mythology, not a person of a particular religion. However, if we were to approach this question in a more metaphorical or cultural context, it's worth noting that ancient Greek religion was polytheistic, meaning that they believed in and worshipped multiple gods and goddesses. In this sense, Zeus was considered the king of the gods and the ruler of the sky and thunder in Greek mythology. But to directly answer your question, "What religion is Zeus?" would not be accurate as he is not associated with any modern religious tradition. Instead, he is part of the cultural and religious heritage of ancient Greece.