Theater Osnabrück is a German theatre in Osnabrück, Germany. It operates under the auspices of the Städtische Bühnen Osnabrück gGmbH. The primary performance venues are the Theater am Domhof (seating capacity 642) and the emma-theater (seating capacity 96). The roots of the company date back to 1771, with theatrical presentations at the Schloss Osnabrück. In 1780, productions shifted to two former aristocratic residences. Albert Lortzing had an official affiliation with the company from 1827 to 1833. In 1832, the city of Osnabrück took over the complex as its first municipal theatre.