As a noun, Olympian can refer to:

• One of the Twelve Olympians (see also Greek mythology).
• In modern contexts, to an athlete participating in the Olympic Games.
• A model of double decker bus developed by British Leyland and Volvo.

As an adjective, it can also refer to The Twelve Olympians, in Greek mythology, were the principal gods of the Greek pantheon, residing atop Mount Olympus. ... Greek mythology comprises the collected legends of Greek gods and goddesses and ancient heroes and heroines, originally created and spread within an oral-poetic tradition. ... For months before the Olympic Games, runners relay the Olympic Flame from Olympia to the opening ceremony. ...

• The ancient Greek town of Olympia.
• The modern city of Olympia the capital of Washington.