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FEATURING SOME OF THE BEST COMEDY GROUPS IN THE COUNTRY!

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IMPROV, WRITING, SKETCH & MORE!

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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!

IMPROVISED SHAKESPEARE CHICAGO

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

Playing at iO:

Playing Tonight & Upcoming Shows

Felt: An Improvised Puppet Show, The Harold Team DIG

Felt: An Improvised Puppet Show

The Harold Team DIG

Wed 6/26

8:00 pm

Chicago, IL

More Info

Virgin Daiquiri, The Harold Team Nectar

Virgin Daiquiri

The Harold Team Nectar

Wed 6/26

8:00 pm

Chicago, IL

More Info

Face Plants with Carl and The Passions feat. The Harold Team Mothership

Face Plants with Carl and The Passions feat. The Harold Team Mothership

Wed 6/26

8:00 pm

Chicago, IL

More Info

This Year in Music: 2000

This Year in Music: 2000

Wed 6/26

8:00 pm

Chicago, IL

More Info

The Late 90's, Randy, The Harold Team Crocodile Nasties

The Late 90's, Randy, The Harold Team Crocodile Nasties

Wed 6/26

10:00 pm

Chicago, IL

More Info

CAGEMATCH

CAGEMATCH

Wed 6/26

10:00 pm

Chicago, IL

More Info

Silly Point Presents: Indian Summer

Silly Point Presents: Indian Summer

Wed 6/26

10:00 pm

Chicago, IL

More Info

Fükhaus: Presented by Word Brothel

Fükhaus: Presented by Word Brothel

Wed 6/26

10:00 pm

Chicago, IL

More Info

The Showcase

The Showcase

Thu 6/27

7:00 pm

Chicago, IL

More Info

HAROLD NIGHT w/ Meridian & Mean Streak

HAROLD NIGHT w/ Meridian & Mean Streak

Thu 6/27

8:00 pm

Chicago, IL

More Info

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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 TO SKETCH

  • IMPROV

  • INTENSIVES

  • ELECTIVES & WORKSHOPS

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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.

    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.