The gradual rapprochement between peoples, cultures, beliefs involve numerous conflicts with indigenous peoples on ethnic or religious grounds. These conflicts tend to turn into articulation of radical positions and extremist activities. The aim of this study was to analyze the current state of terrorist acts and identify the determinants of terrorism on racial and religious grounds in Western Europe. The statistical method, comparison, graphic analysis, analysis of the Global Index of Terrorism; The European Union reports on the situation and trends of terrorism, as well as the research on terrorism-related issues for 2011-2021, were used as empirical research methods. It is determined that the UK, France, Germany, Greece, Belgium, Spain, Italy, and Sweden are subject to the highest risk of terrorist acts. It was proved that the determinants of terrorism are localized in relation to key issues related to the state of the economic sphere, social development, as well as the spiritual and cultural sphere. Emphasis is placed on the need to overcome the problems associated with terrorist activities by formulating a policy of national means of resolving ethnic and racial issues and active international cooperation. Further research will identify key determinants of terrorism in Eastern Europe.