The Oktyabrskiy Big Concert Hall (BKZ)[1] (Russian: Большой концертный зал «Октя́брьский», romanized: Bol'shoy kontsertnyy zal «Oktyábr'skiy», Big Concert Hall "October") is a theatre located in Saint Petersburg, Russia.

It hosts variety actors, rock musicians, and also dance and ballet collectives.

The project involved architects Valentin Kamensky and Jean Verzhbitsky, and the engineers Galkin and Maksimov.

The building silhouette is strictly geometrical, the facade is decorated with a huge stained-glass window.

[3] Media related to Oktyabrskiy Big Concert Hall at Wikimedia Commons