Globalization and the numerous processes that take place in the market, as well as the competitiveness, are just some of the reasons that arouse the desire and need of companies and countries for development and progress. One of the forms of connectivity or networking that has positive impact on competitiveness is certainly the cluster. With many advantages and disadvantages, clustering is a term that is researched and monitored, and applied in many countries throughout Europe and the world. This provides an opportunity to compare and learn from others examples. Croatia has also recognized the importance of clusters in the development and progress of the regions and the country as a whole. Given its great potential, the Republic of Croatia must use clustering to achieve significant competitiveness, but also innovation and productivity. Some of the steps taken towards this are the establishment of a competitiveness cluster, the Cluster Community, the compilation of the Strategy of cluster development in the Republic of Croatia, etc. With further efforts to develop the clusters, Croatia will achieve positive and productive effects.