Organizational changes as a part of organizational dynamics are the process of changing the existing organization, i.e. the process of transitioning the organization from the present state to a future desired state with the aim of increasing organizational efficiency and effectiveness and aligning the organization with the requirements of the environment. Nowadays the theme of organizational change is very important because of the dynamic environment that affects the organization. Globalization, technology, different types of environment (economic, political, etc.) and the process of organizational growth can be extracted as the most common causes of organizational changes. The process of organizational changes itself is very complex so managers or in this context, change agents, have different models available to successfully implement the change. When implementing the organizational change process itself, change agents must carefully plan each step because changing one of the organizational factors entails the change of some other factors so it should be anticipated that changes in one segment of the organization affect another segment of the organization. The most common consequence of implementing this process is employee resistance because they are afraid of something new and unknown so managers have a great task to prepare employees for the change and to explain what positive outcome it will bring. The paper tries to explain all the aspects of organizational changes and based on the analysis of the research carried out it can be concluded that organizations in the Republic of Croatia are really paying attention to this process and people are familiar with the overall context of organizational changes.