Russian Theatrical Society or RTO (Russian: Русское театральное общество (РТО)) was a theatrical society, which was formed in the Russian Empire and worked during Bolshevik Russia and Soviet Union periods. It was a Trade Union of the stage workers until 1919, when was formed the Trade Union of Art Workers (RABIS). RTO was renamed the All-Russian Theatrical Society or VTO (Russian: Всероссийское театральное общество (ВТО)) in 1933.