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CHICAGO'S BEST IMPROV COMEDY

THE BIRTHPLACE OF LONGFORM IMPROV & HOME TO SOME OF THE BEST IMPROV COMEDY SHOWS IN THE COUNTRY!

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INSPIRING GENERATIONS OF AMERICA'S BRIGHTEST COMEDIC ENTERTAINERS SINCE 1981!

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WHIRLED NEWS TONIGHT

THE NEWS IS REAL. EVERYTHING ELSE IS IMPROVISED.

SATURDAYS AT 8PM - Read more & buy tickets!

THE IMPROVISED SHAKESPEARE CO.

A two-act fully improvised play in Elizabethan style using the language and themes of William Shakespeare.

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PERFORMED 7 NIGHTS A WEEK

See all of our Harold teams

Upcoming Events

Del Close Theater

The Harold Team State Schramps

The Harold Team Hometown

Mon 12/18

8:00 pm

Chicago, IL

More Info

iO Improv All-Stars

Mon 12/18

10:00 pm

Chicago, IL

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The Harold Team Big Tobacco

The Harold Team Bad Bear

Tue 12/19

8:00 pm

Chicago, IL

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The Harold Team Devil's Daughter

The Harold Team First Kiss

Tue 12/19

10:30 pm

Chicago, IL

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Mission Theater

The Armando Diaz Experience

Mon 12/18

8:00 pm

Chicago, IL

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Dynasty

Mon 12/18

10:00 pm

Chicago, IL

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Heels Over Head

Tue 12/19

8:00 pm

Chicago, IL

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Playground

Tue 12/19

10:00 pm

Chicago, IL

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Chris Farley Cabaret

Triple Threat

Mon 12/18

8:00 pm

Chicago, IL

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Stand Up Open Mic

Mon 12/18

10:00 pm

Chicago, IL

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The Pool

Tue 12/19

8:30 pm

Chicago, IL

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Bomb A$$ $et: Not A Stand Up Showcase

Tue 12/19

10:30 pm

Chicago, IL

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Jason Chin Cabaret

POV

Mon 12/18

7:00 pm

Chicago, IL

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Cats Vs. Dogs: Battle of the BEASTS

Mon 12/18

8:30 pm

Chicago, IL

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La-Di-Dah

Mon 12/18

10:30 pm

Chicago, IL

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FUDGE

The Harold Team 2 Bed 3 Bath

Tue 12/19

8:30 pm

Chicago, IL

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“This is the most important group work since they built the pyramids” - Bill Murray

Considered to be the Mecca of improvisation, the iO Theater boasts an Improv Training Center that has helped train and develop the talents of an entire generation of America’s best and brightest comedic entertainers for over 30 years. Want more? Our Writing Program and battery of electives will help you develop whatever comedy skills you need!

  • IMPROV

  • INTENSIVES

  • ELECTIVES & WORKSHOPS

  • WRITING

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    Training America’s Best Comedic Entertainers for over 30 years

    Widely considered to be the premier venue for long-form improvisational performances and classes, the iO Theater (formerly known as the ImprovOlympic Theater) was founded in 1981 by Charna Halpern and the late great improvisational teacher and director, Del Close.

    Chicago's Favorite Comedy Spot

    The iO Theater is the home of long-form improvisation and Chicago's Best Improv Comedy.

    Located in Chicago's Lincoln Park Neighborhood, the iO Theater features 4 theaters (with shows 7 nights a week), 2 bars, a kitchen, beer garden, and Event space with over 33,000 square feet of space.

    Daily Drink Specials! Students view shows for free!

    WHEN IT COMES TO COMEDY, WE'RE ALL BUSINESS.

    Do you want entertainment for your conference, meeting or celebration? Let iO put together a hilarious improv show to bring down the house or have us write customized material to make light of issues related to your company or business field. If you can dream it up, we can handle it. If you can’t, then we’ll take care of that too.

    Our writers have gone on to work at such shows as Saturday Night Live, The Daily Show, The Colbert Report, Late Night with Conan O’Brien, 30 Rock and MADtv, and countless other shows. So rest assured knowing you’re in good hands.