iO Theater Chicago’s home of long-form improv since 1981. Nightly comedy shows, world-class improv classes, and venue for private events

iO, or iO Chicago, (formerly known as ImprovOlympic) is an improv theater and training center in central Chicago. The theater teaches and hosts performances of improvisational comedy.

iO Theater, founded by comedic icon Del Close and Charna Halpern in 1981, is one of the key pillars of the country's improv community. It has launched the careers of innumerable comedy legends.

The iO Theater is the birthplace of longform improv and is home to the best comedy shows in the country.

3 days ago · The iO Theater operates multiple stages, offering a rotating slate of performances and classes. Whether you’re a student of comedy or just someone who needs a good laugh after work, …

Find all the available events at The iO Theater. Experience the most that Chicago has to offer!

THE IO THEATER, Walk-Ins Welcome, 1501 N Kingsbury St, Chicago, IL 60642, 50 Photos, +13123003350, Mon - 6:00 PM - 11:00 PM, Wed - 6:00 PM - 11:00 PM, Thu - 6:00 PM - 2:00 AM, Fri …

Located in the heart of Chicago's Lincoln Park neighborhood, the iO Theater features 40 shows/week, Wednesday-Sunday with, 2 bars, an in-house restaurant, outdoor beer garden, and large event space.

Chicago’s iO Theater was founded in 1981 by Charna Halpern and David Shepherd. Following Shepherd’s departure, improv specialist Del Close came aboard and helped turn iO into one of the …

In addition to our standard programming, we offer custom entertainment options like private shows, team team-building workshops. With four theaters, five classrooms, a large event space, and an in-house …