Inflation can be defined in various ways, but at its simplest it is a reflected increase in the general price level. Inflation is an integral part of any economy, but it also brings with it certain challenges, especially when its level exceeds acceptable thresholds. The causes of inflation can be manifold and its manifestations can vary. The severity of the consequences of inflation depends primarily on the type, cause, duration and intensity of inflation, and its impact can affect citizens' living standards, market stability and overall economic growth. For this reason, curbing inflation is a crucial step in maintaining economic stability. This paper examines inflation trends in the Republic of Croatia for the period from 2018 to 2023, focusing on the causes of the observed movements. A comparison is also made with other eurozone countries. The research results show that inflation in Croatia increased significantly during the observed period and peaked in 2022. The main causes of this increase are global in nature. First, the world was hit by the COVID-19 pandemic in 2020, which led to disruptions in global supply chains and the balance of supply and demand. Shortly after the outbreak of the pandemic, in 2022, the war between Russia and Ukraine began, which further worsened the situation on the financial market due to the importance of these countries as exporters. To make matters worse, the Republic of Croatia joined the eurozone in January 2023, which also had a slight impact on inflation. Inflation in Croatia is a challenge that requires a comprehensive approach and it is important to understand its causes in order to ensure economic stability. The purpose of this research is to determine the dynamics of inflation in the Republic of Croatia in the period from 2018 to 2023 and to identify the key causes of the recorded trend in order to gain a deeper understanding of the dynamics and causes of inflation in the country.