Religious tourism is one of the dominant tourist products on the international tourist market. In practice, it is often subordinated to a cultural tourism and is unjustifiably developing only as one of his segments. The sincere development of cultural and religious tourism, while each of them develops as a separate tourist product, contributes to intercultural diversity and understanding, as well as eliminating the basic forms of discrimination and enriching the tourist offer and maximizing an authentic tourist experience. The basic determinants of the successful development of religious tourism in Croatia are tourist experience and authentic experience, as well as added value in tourism. Croatia has recognized the importance of these products, but for the quality and full development of religious tourism it is important to remove the basic structural constraints. The aim of the paper is to explore the significance, characteristics and specifics of religious tourism as a separate selective form. In addition, specific goals are reflected in the consideration of the relationship between cultural and religious tourism, the specification of the features of modern tourist demand and offerings in religious tourism, as well as the definition of the basic determinants of its successful development. The purpose of this paper is to address the issue of the development of religious tourism in Croatia.