Understanding the religion of a civilization, including its propaganda purposes, is important for understanding that same civilization and its way of functioning. The aim of this paper is, through an overview of the Roman imperial cult on the Croatian coast of the Adriatic, to understand how the cult functioned in this area, its similarities and differences in implementation in relation to Rome, and its impact on the local population and culture. The paper consists of three parts. In the first part, the Roman imperial cult will be presented: its foundation, development and interweaving with Roman religion. The second part consists of a presentation of the development of the Roman imperial cult on the Croatian coast of the Adriatic through data available in the literature. It should be noted that this work covers the area of today's Adriatic coast, which in Roman times was divided into two administrative units, Dalmatia and Histria. The third part of the paper is the conclusion. As sources were used written works of ancient writers (Appian, Dion Cassius, Livy, Pliny, Suetonius, Virgil), scientific works that dealt with this topic and related branches and databases with Roman inscriptions. The results of archaeological research were also used for this work, which greatly helped to understand the information written on the inscriptions and in the works of ancient writers.