Recent changes in global politics have revitalized research into the ideas, beliefs, principles, myths, and symbols that shape Russia’s perception of the world and international relations. My empirical research explores how illiberal historical narratives of the 1917 October Revolution were transformed into an important component of Russia’s contemporary political quasi-ideology. Though the Soviet foundation myth of the Great October Socialist Revolution has always been a focus of interest for historians of Russia, including those who use the memory-studies paradigm, my research is the first to analyze this significant historical event through the prism of illiberalism studies and the illiberal memory concept. Analyzing an extensive database of primary sources, I found that in the late 1980s the gradual decriminalization of anti-Bolshevik narratives written during the period of the Russian Civil War resulted in the renaissance of conservative memory culture. Also, the political struggle over attempts to confront historical injustices triggered a mobilization of illiberal Soviet narratives based on Marxist-Leninist views of world politics. When the failure of liberal reforms conditioned the rise of right- and left-wing populist movements and resulted in the political turnaround of 2000 with the election of Vladimir Putin to the presidency, these illiberal narratives were mobilized first by illiberal politicians and later by the Kremlin. A worsening of relations between the West and Russia led to the rapid illiberalization of the Russian state and a rollback of liberal memory culture.