Unemployment is one of the key economic and social challenges faced by many countries, including the Republic of Croatia. The impact of unemployment is not limited to individuals and their financial conditions, but extends to various aspects of society, including the pension system. Unemployment can have a significant impact on the stability, sustainability and functioning of the pension system, and provide challenges for the future pension security of citizens. The pension system of the Republic of Croatia is based on the principle of solidarity, where currently employed people finance the pensions of currently retired persons. In view of this, a high level of unemployment can result in a decrease in income in the pension system, which can lead to an increase in the pressure on the financial resources and sustainability of the system. Unemployment can have a negative impact on pension contributions and income. A high unemployment rate results in reduced contributions to the pension system and increased costs of social programs. The perspective of unemployment on the pension system in Croatia is challenging, but there are also some perspectives for improving the situation. The implementation of active employment policies and encouraging the creation of new jobs can reduce the unemployment rate and increase the number of people paying contributions to the pension system.