1a plain in Greece, in the western Peloponnese. In ancient Greece it was the site of the chief sanctuary of the god Zeus, the place where the original Olympic Games were held, after which the site is named.
2the capital of the state of Washington, a port on Puget Sound; population 45,322 (est. 2008).
Olympia in other Oxford dictionaries
Definition of Olympia in the US English dictionary