The Theater in der Leopoldstadt (also: Leopoldstädter Theater) was an opera house in the Leopoldstadt district of Vienna, founded in 1781 by Karl von Marinelli, following the Schauspielfreiheit (ending of the court's monopoly on entertainment) by Joseph II in 1776. The 19th-century summer stage called the Thaliatheater was also managed by the Leopoldstadt.
