Managerial approach in the public sector can be adapted and applied, thus public management entails the implementation of an appropriate model that suits the specific needs of each country. This thesis explores the managerial approach in the era of welfare state, with a particular focus on the United States, Scandinavian countries, continental Europe, and Croatia. The aim of the research is to analyze the application of managerial principles and methods in the public sector and provide a professional contribution to enhancing the efficiency and quality of public administration. The managerial approach in public administration has the potential to improve effectiveness and efficiency in delivering public services, resource management, and decision-making. Integrating managerial tools such as strategic planning, performance management, and quality management can result in better alignment of goals, resource optimization, and service quality improvement. In the context of the welfare state, the managerial approach can help strike a balance between social protection and economic development. In the Croatian context, the application of the managerial approach in public administration can be of particular significance. Croatia faces challenges in terms of the efficiency of public administration, transparency, accessibility, and service quality. The managerial approach can provide guidance for improving governance, aligning processes, strategic planning, and promoting collaboration between the public sector and civil society.