National academic Bolshoi Opera and ballet theatre of the Republic of Belarus (Belor. National academic Vyaliki Opera and ballet theatre Respubliki Belarus) — the only Opera house and the largest theater in the Republic of Belarus, located in Minsk. The building of the theater is a model of Soviet pre-war constructivism (authors — I. G. Langbard and G. Lavrov), has the status of a monument of architecture of national importance.