Money plays a very important role in any economy. This importance means that it is crucial to carefully control its amount and availability on the market. These actions are done by central banks within the scope of their macroeconomic goals. The aim of this paper is to analyze the effect of the euro introduction on Croatian macroeconomic parameters. This was done by first analyzing countries that share similarities with Croatia that are already part of the eurozone. This analysis has shown that none of the analyzed countries experienced significant changes to their macroeconomic parameters, but that those parameters were primarily influenced by prevailing economic conditions. The second part of the research was done with the help of a focus group. It consisted of six participants that were all macroeconomic experts. The results have shown that the participants do not consider the euro introduction will have a significant effect on the Croatian economy. It mainly creates positive preconditions which can be capitalized on with further development of the national economic policy. Consumer prices, which were largely assumed to rise, are expected to see a one-time increase due to price rounding. But the current inflation and energy crisis are presumably negatively affecting the perception and the expectation of the euro introduction, but that can only be examined after the euro is introduced.