This diploma thesis deals with the impact of the debt crisis in the euro area to status of the euro in the world. The first part describes the circumstances of the origin and progress of the debt crisis. In the second part are more fully described various monetary policy measures taken by the ECB in response to the debt crisis as well as their impact on the European economy. The third part analyzes the international role of the euro in sub-segments of the financial market in the period before and during the debt crisis and provides an overall picture of its impact on the euro.