Cruising tourism has experienced numerous transformations in the last few decades and has become an increasingly popular form of tourism with a tendency for further growth and development. The Republic of Croatia, with its beautiful and indented coastline and historic coastal towns, has become a popular cruise destination, attracting millions of tourists every year. In this master thesis, the importance of cruises to the destination and the local and national economy is pointed out. The paper analyzes cruise tourism in the Republic of Croatia with special reference to the analysis of cruise ships visiting Croatian ports, analysis of traffic and infrastructure of the main passenger ports in Croatia. Based on the analysis, a comparison was made of the number of passengers on cruises in the previously analyzed ports (Rijeka, Zadar, Šibenik, Split and Dubrovnik) and an overview of trends in cruises in the Republic of Croatia was given. The results of the research and the conclusions obtained in this master thesis point to the need for strategic planning and cooperation among stakeholders in order to ensure the long-term sustainability of cruise tourism in Croatian ports.