Indiana Repertory Theatre

Indiana Repertory Theatre, frequently abbreviated IRT, is a professional regional theatre in Indianapolis, Indiana that began as a genuine repertory theatre with its casts performing in multiple shows at once. It has subsequently become a regional theatre and a member of the League of Resident Theatres. A standard season typically consists of six plays on two different stages and the bulk of its season (including a holiday show, usually Charles Dickens's A Christmas Carol) performed on the OneAmerica Financial Stage.

The theatre company has history in two theatre buildings. It began in 1972 in The Athenaeum. In 1980, the IRT moved to its current home, The Indiana Theatre, a former Paramount Pictures Publix Theatre at 140 West Washington Street, built in 1927 and converted from a movie theater for IRT's use.