According to an old legend, Vladimir Lenin, the founder of Soviet Marxism, overlooked Karl Marx’s theory of alienation. For Marxist humanists, this theory underlies the emancipatory thrust of Marx’s thought, and since, in their view, Lenin’s acolytes ignored alienation, communist regimes failed to empower the workers. Considering these claims, this article challenges the legend that Lenin himself neglected Marx’s theory of alienation. It argues that this theory was central to Lenin’s Marxism. In fact, Lenin was among the first to discover the concept in Marx’s work, although he also analysed the concept independently. Like Marx, Lenin criticised capitalist alienation and defined communism as a non-alienated society. After the October Revolution, however, Lenin struggled to realise this goal. Responding to a failed European socialist revolution, a brutal civil war, a deadly famine and widespread cultural backwardness, Lenin made concessions to alienation. Nevertheless, Lenin’s legacy provides an important insight into alienation today.