Odeon or odeum is a building used for musical performance in Sparta, built in the 7th or 6th century BC. Hence, any such building in ancient Greece or ancient Rome was called an odeon.
It may also refer to:
Cineplex Odeon, one of North America's largest movie theatre operators
Cineplex Odeon Films, the film distribution unit of the Canadian cinema chain Cineplex Odeon Corporation
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