The State Opera (Czech: Státní opera), is an opera house in Prague, Czech Republic. It is part of the National Theatre of the Czech Republic, founded by Ministry of Culture of the Czech Republic in 1992. The theatre itself originally opened in 1888 as the New German Theatre and from 1949 to 1989 it was known as the Smetana Theatre. More recently it was known as the Prague State Opera.
An important part of the Prague State Opera's operation is its Documentation Centre. Apart from keeping systematic archival records of the theatre's activities, it has focused on the reconstruction of the lost archives of the New German Theatre. In 2004, the Prague State Opera published, with the Slovart publishing company, a book on its history, The Prague State Opera: A History of the Theatre in Pictures and Dates. The book, with texts in Czech, English and German, documents the history of the opera house from the New German Theatre to the present. Drawing material from a wide array of sources, both domestic and international, the publication grouped together an invaluable literary and photographic archive, including a number of documents which were published for the first time.