Festival tourism is widespread throughout Croatia, the EU, and the rest of the world. A successful festival is preceded by numerous organizational elements ranging from the idea, goals, finances, marketing to implementation. In addition to positive impacts, there are also negative impacts on the destination and the individual. Festivals are flexible, adaptable and are a kind of destination promotion. They contribute to the image of the destination, the strengthening of the state at the international level and the cultural consciousness of the individual. However, they can develop gradual destruction of the environment, substance abuse, social dislocation, but also general failure visible through financial loss. The paper presents festivals that contribute to tourism in Croatia and the rest of the EU. IN music, Festival of Light, Outlook & Dimensions and Špancirfest are festivals that attract many visitors to Croatia at the time of the event and are recognized internationally. Apart from the visitors who are attracted by the festivals, there are also foreign organizers who have recognized Croatia as a desirable destination for organizing festivals. Sziget, We Love Green, La Tomatina and Creamfields festivals are organized in Hungary, France, Spain, and the UK, attract around 100,000 visitors and are the winners of several awards for their achievements.