Igor Vladimirovich Kvasha (Russian: Игорь Владимирович Кваша; 4 February 1933 — 30 August 2012) was a Soviet and Russian theater and film actor. He was a leading actor of Sovremennik Theater. Igor Kvasha was one of the Sovremennik founders along with Galina Volchek, Oleg Yefremov, Yevgeniy Yevstigneyev and Oleg Tabakov. He was honored with People's Artist of Russia in 1978.