The article provides a brief analysis of the phenomenon of «conciliarity» as a religious, spiritual, and philosophical concept, which has had a huge impact on the formation of the Russian identity. It is emphasized that conciliarity, as an inherent feature of the Russian man, is manifested in various aspects of Russian people’s life. In the present work, an analysis of theoretical understanding of conciliarity by XIX century thinkers, as well as understanding of the Russian Orthodox phenomenon by contemporary researchers is carried out.