Throughout the first two decades of the 21st century, populism has emerged as one of the most significant global political phenomenons, deeply affecting electoral politics in democracies across the globe, both new and consolidated. In Europe, populism has become a major force, reshaping the political landscape and discourse of the European Union and most of its member states in unprecedented ways. Over the years, the impact of populist parties has been felt both at the level of domestic and European politics, increasingly putting pressure on more established mainstream parties, particularly at the right of the political spectrum. Populism is found in different locations in the party system, predominantly at the far-left and far-right of the spectrum. All available data of populist parties illustrates the rise in support for populist, far-left, and far-right parties in Europe since the early 1990s. Such parties have made significant electoral gains in recent years. They have joined coalition governments in several countries, including Italy, the Czech Republic, the Netherlands, Hungary, Poland, Slovakia and Austria, more generally reflecting the mainstreaming of their ideas and themes in party politics and public opinion. Populist performances typically vary across parties and contexts, reflecting the complex interplay between structural and contextual factors. The electoral support for radical parties is rooted in structural factors, but their translation into electoral choice is conditioned by political discontent that originates in specific political dynamics. While contemporary populism is generally seen as a response to a wide range of socioeconomic and cultural grievances and issues, it can also be seen as an expression of political discontent largely dependent on the national political cycle and the shorter-term country-specific opportunities produced for populist mobilization. In this context, the analysis of the European Parliament elections in June 2024 provides a unique opportunity to assess the current wave of populism across all 27 European Union (EU) member states simultaneously. With elections occurring around the same time, we can examine this wave of pan-European populism more closely and comparatively, assessing its scale, dynamics, and impact on national politics and, ultimately, on the EU. Thus, this report by the European Center for Populism Studies (ECPS) examines the electoral performance and influence of populist parties in the 2024 European elections. Drawing on country-specific analyses by local experts, the report evaluates populist party performance across all EU member states and discusses the challenges populist politics pose for European institutions and the future of Europe. The ECPS report illustrates the diversity of populism and the variety of its manifestations across the political spectrum. The current trend is one of increasing mainstreaming and normalization of populist parties as a result of a dual process of modernization and moderation by populists, on the one hand, and accommodation of populist ideas and policies by mainstream parties, on the other hand. The report see that the modernization of populist politics concerns, in particular, the moderation and blurring of those parties’ positions regarding European integration, to increase their appeal to moderate and pro-EU voters and to foster collaboration with mainstream parties. The results of the 2024 European elections have essentially confirmed the electoral consolidation of the populist phenomenon in Europe. In 2024, these parties won 263 of the 720 seats – approximately 36%. Populists came first in the elections in six countries, with radical right populists winning in four countries, while centrist populists topped the polls in another two countries. Such results reflect the rise in support for populism in recent national elections as well as the increase in the number and geographical spread of populist parties across Europe. No less than 60 populist parties across 26 EU member states gained representation in the European Parliament in June 2024. In comparison, a total of 40 populist parties had won seats in 22 EU countries in the 2019 election. Populist party performances varied, however, across countries and different brands of populism. The results of the 2024 European elections have essentially attested to the consolidation of the populist right, while left-wing and centrist populist parties have received comparatively less support across Europe. Moreover, the new distribution of seats should not mask distortions due to the relative weight of national representations in the European Parliament. The 2024 European elections have delivered a new European Parliament whose centre of gravity has clearly shifted to the right and where the presence of populist actors has increased. However, these parties remain divided in the European Parliament. With a few notable exceptions, such as Fico’s SMER in Slovakia and the German BSW, parties of the populist left are all found in the Left group in the European Parliament. Right-wing populists are currently distributed across three different groups – namely, the ECR, PfE, and ESN. Some populist parties are also found among the Non-inscrits (NI). Finally, somewhat reflecting the diversity in their ideological profile, centrist populist parties are scattered across different groups, including the EPP and Renew Europe. With the increased representation of right-wing populists in the European Parliament, the report anticipates a growing influence on political debates and policy decisions in areas such as migration, climate change, EU enlargement, and support for Ukraine. It also foresees more ad hoc coalitions on specific issues rather than cohesive positions and policy proposals. The legitimation of radical-right discourse and its impact on both European and national politics is expected to continue. While the current EP majority may effectively maintain a cordon sanitaire around both the far-right and far-left, an overall shift to the right, in both rhetoric and policy, is already evident.