Financial literacy is gaining importance at the international level, an increasing number of researches and educations are being conducted with the aim of raising the level of financial literacy, among which there is a special emphasis on young people. The paper therefore presents previous research on financial literacy and published works in the Republic of Croatia, and presents a comparative analysis of the results of financial literacy in European Union countries according to the OECD/INFE methodology for countries for which data were available in 2023. The results of the presented research showed that financial literacy in Croatia is not at a satisfactory level, although a continuous increase in financial literacy is visible. The lowest level of financial literacy is achieved by young people. At the international level, the rating of Croatia's financial literacy is slightly below the average of the EU countries taken into account during the analysis, and the level of financial well-being in Croatia is one of the lowest. In addition to the above, the analysis of the results of the financial literacy research of secondary school students for 2021 and 2022, as well as the financial literacy of teachers and their interest in conducting educational activities related to financial literacy for students, is presented. High school students in Croatia have a higher level of financial behavior than financial knowledge, so for example they mostly compare products before buying, but they do not know the features of the pension system. Teachers show interest in conducting financial literacy education for students, and most believe that financial literacy should be part of the curriculum. Teachers achieved the highest level of financial literacy in the category of financial knowledge, and the lowest in financial attitude. The above points to the necessity of an increase in educational activities, primarily aimed at young people in order to increase the financial literacy of citizens. It is necessary to continue the implementation and development of the national strategic framework for financial literacy, as well as systematic and continuous education within the educational system.