Church of the Blessed Virgin Mary was a Roman Catholic parish church in the city of Grodno. It was founded by Vytautas, Grand Duke of Lithuania before 1389 during the Christianization of Lithuania. Because of its founder, it was commonly referred to as Vytautas' Church. Rebuilt as a Gothic church around 1494, it was one of Grodno's principal Catholic churches until the post-World War II Soviet occupation. It was used by the Russian Orthodox Church since 1804 for roughly a century after the Catholic church was confiscated by the Russian Tsar. It was given back to the Roman Catholic Church during the interwar and World War II, except during the Soviet occupation of 1940–1941. Neglected in the aftermath of World War II, it was finally demolished in 1961.