Globalization is often highlighted as the main cause of international interconnectedness, which in a sense ignores national borders and leads to even greater interconnectedness (and thus interdependence) among multiple actors (populations, businesses, countries, and integration), an increasingly rapid flow of goods, services, finance, people, and ideas, and changes in institutions and policies at the national and international levels that facilitate or encourage these flows. Globalization brings many benefits and opportunities, but also challenges. The EU's goal is to effectively manage globalization by maximizing its opportunities and mitigating its negative effects. Therefore, the aim of this thesis is to analyse and describe the impact of globalization on the EU (through economic, institutional and social dimensions). A particular research focus is on the analysis of resource allocation, internationalization (especially foreign trade balance and foreign direct investment), demographic conditions, and the relationship between national and supranational economic policies. The idea of exploring the impact of globalization on the EU in the context of the thesis arose because of the importance of the EU for its members, but also because of the challenging times of geopolitical and geo-economic reality. At the same time, it is certainly interesting and useful to highlight the impact of globalization and the EU on the Republic of Croatia, especially considering that the Republic of Croatia is celebrating its 10th anniversary.