Tovstonogov Bolshoi Drama Theater formerly known as Gorky Bolshoi Drama Theater (1931–1992), often referred to as the Bolshoi Drama Theater and by the acronym BDT , is a theater in Saint Petersburg, that is considered one of the best Russian theaters. The theater is named after its long-time director Georgy Tovstonogov. Since 2013, Andrey Moguchy is the artistic director of the theatre.
The theater is also encountered in literature as the Great Drama Theater or Great Dramatic Theater of Leningrad.