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iO Theater, also known as ImprovOlympic, is a theater in Chicago, Illinois dedicated to improvisational comedy. It has an associated theater in Los Angeles known as IO West.
How to Reference This Page
APA
The Improv Archive. (2026). iO. Retrieved October 10, 2026, from https://improvarchive.org/companies/io
Chicago
The Improv Archive. "iO." The Improv Archive, 2026. https://improvarchive.org/companies/io.
MLA
The Improv Archive. "iO." The Improv Archive, 2026, https://improvarchive.org/companies/io. Accessed October 10, 2026.
The Improv Archive is a systemically maintained repository. The archive itself acts as the corporate author.