Zeus Olympios, “Olympian Zeus,” was the Panhellenic counterpart of these various local Zeuses. He was the supreme god of all Greeks, ruling the cosmos from atop Mount Olympus. Other titles and epithets of Zeus referred to specific ritual practices. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.