The use of renewable energy sources is needed for sustainable living. With the developing technologies, wave energy conversion systems (WECs) have an important place among renewable energy systems. However, the use of the seas for different purposes and the changing wave conditions depending on the location reveal the need to determine the priority areas for the installation of WECS. Therefore, in this study, it is aimed to determine the priority areas for the installation of WECSs on the southwest coast of the Black Sea, which has a higher wave energy potential compared to other coasts, under different scenarios with the help of geographic information systems. For this purpose, the data needed for the factors affecting the installation areas of WECs (wave power, period, height, marine geology and distance to the coast, harbour and grid etc.) were obtained. Extreme wave conditions and wave power variability were also taken into consideration. As a result of the study, the evaluation area was reduced since the military areas occupy a very large area. In addition, in order of priority, the coasts of Kırklareli, the east coast of Kocaeli and the east coast of Istanbul, where Şile district is located, were determined as priority areas for the installation of WECs.