The Ohnsorg Theater in Hamburg, Germany is a stage run after the British system of repertory theatre with up to six produced plays per season. Plays are exclusively performed in Plattdeutsch and play a major role in spreading the knowledge and, in recent times, renewed appreciaton of this minority language. Exceptions in Hochdeutsch are only made for television broadcasts. These broadcasts on the regional NDR network for Northern Germany and on the nationwide ARD network have made the theatre and its former main star Heidi Kabel popular in many parts of Germany and beyond.
Although mostly famous for its comedies, the majority of them set in the typical environment of Northern German farmers, fisher men or merchants from Hamburg, the theatre also performs more serious works of traditional literature and musical theatre as well as adaptations in Platt of international material such as the stage version of Stephen King's Misery and original plays such as Tennessee Williams's Cat on a Hot Tin Roof, Robert Thomas's 8 Women, Willy Russell's Shirley Valentine, Lawrence Roman's Alone Together or Shakespeare's A Midsummer Night's Dream.
The theatre was founded by Dr. Richard Ohnsorg (May 3, 1876 - May 11, 1947) in 1902 as Dramatische Gesellschaft Hamburg, with the stated purpose of providing a stage on which plays in Platt could be performed. This was often not possible in other theatres, since platt was generally considered to be a sign of low social rank and rather boorish back then despite the fact that Platt was also spoken in the wealthy and educated circles of Hamburg's merchants and shipowners.