The bachelor's thesis is concerned with the critique of prejudices in Voltaire's philosophical tales. The aim of the first part of this thesis is to introduce and analyze the genre of Voltaire's philosophical tales and to put them in a broader historical context. In the second part, the thesis focuses on defining the concept of prejudice in its complexity, as Voltaire understood it and how he used it. It also puts this concept in the context of Enlightenment thinking as a whole. In its last part, the thesis illustrates and further analyzes how and why Voltaire criticizes specific types of prejudices, in three selected short stories (Micromégas, The History of the Voyages of Scarmentad, The Princess of Babylon).