The recent massive spread of false and misleading news in the new media, exacerbated by the ongoing coronavirus pandemic, poses a significant problem for European governments. For example, fake news complicates efforts in European countries to achieve adequate levels of covid-19 vaccination. However, the impact of fake news is not limited to domestic politics. Fake news is increasingly influencing perceptions of other countries, policies of other countries, and public preferences in foreign policy. Given the growing importance of fake news in the field of international relations, this thesis will investigate how European citizens view fake news. Media reports from recent years show that the growing problem of fake news did not escape the notice of scholars and researchers. But how do ordinary EU citizens perceive the presence of fake news? Is the perception related to the specific media use or a different level of trust in traditional and new media? Have the public's views on the topic changed during the coronavirus pandemic? This bachelor thesis aims to explore the perception of fake news among EU citizens in 2019 and 2021, as well as its relationship to the use of media and trust in traditional and new media. To fulfil this goal, the author will conduct quantitative research using two Eurobarometer datasets, one from the fall of 2019 and the other from the spring of 2021. zdroje: Inoslav Bešker. “Fake News in Special and Hybrid Warfare,” 2017. https://doi.org/10.13140/RG.2.2.22695.04008. Seib, Philip M. The Al Jazeera Effect: How the New Global Media Are Reshaping World Politics. 1st ed. Washington, D.C: Potomac Books, 2008. Eriksson, Johan, and Giampiero Giacomello. “The Information Revolution, Security, and International Relations: (IR)Relevant Theory?” International Political Science Review 27, no. 3 (July 2006): 221–44. https://doi.org/10.1177/0192512106064462. European Commission, Brussels. “Eurobarometer 92.3 (2019),” 2020. https://doi.org/10.4232/1.13564. European Commission, Brussels. “Eurobarometer 94.3 (2021),” 2021. https://doi.org/10.4232/1.13793.