ABSTRACT Why are people in Central and Eastern Europe more hesitant towards COVID-19 vaccination and more prone to believe in COVID-19 related conspiracy theories than other Europeans? The article claims that the spread of COVID-19 conspiracy beliefs in the post-communist region might be fostered by communist nostalgia. Drawing on the survey data from Lithuania, I show that communist nostalgia is one of the best predictors of COVID-19 conspiracy beliefs, controlling for other related factors such as populist attitudes, trust in political institutions, confidence in media and scientists and pro-Western attitudes. The paper claims that communist nostalgia in Central and Eastern Europe is conducive to conspiracy beliefs in a similar vein as nostalgic narratives employed by populist radical right in Western countries.