The article deals with the problems of Russification as a natural process, prior to the state policy of Russification. It was revealed that it has become an unavoidable phenomenon associated with economic development, urbanization, the spread of Orthodoxy, and bourgeois reforms. Consequences of Russification are related to changes not only in the linguistic field. They also involved traditional rituals, folk stories, and architectural styles. The process of studying the elements of Russian culture by the representatives of Finno-Ugric Peoples was accompanied by significant changes in the culture of Slavic immigrants through the contact with the locals