Changes in the climate put extreme pressure on the use of groundwater resources. As the worldwide demand for consumption in agriculture, industry and other fields increases, so does the need for modeling and evaluation of the efficiency of groundwater potential and quality. Today, it has gained great importance in groundwater exploration due to the rapid increase in methods based on multi-criteria decision-making studies (such as GIS, AHP, F-AHP, ELECTRE methods) and providing first-hand information about the source for subsequent developments. In the light of this information, this study was carried out in order to model and evaluate the groundwater potential and quality of Van. In order to evaluate the groundwater potential of the Van province basin, remote sensing data with AHP and Fuzzy AHP methods, which are GIS-based MCDM programs, were used. With the help of ArcMap 10.2 program, eight thematic maps were created such as rainfall, slope, soil texture, land use/land cover, geology, geomorphology, drainage density, drainage density and fault density. These thematic parameters were graded and weighted according to their effects on the groundwater potential. Then, five different groundwater recharge potential regions were classified as very good (8%), good (17%), moderate (43.37%), poor (23.03%) and very poor (9.6%). The evidence obtained by validating the results is in line with the flow calculation studies showing that groundwater flows from the south to the northeast, the central part, and the north to the southwest of the basin. The evidence obtained by validating the results is consistent with the flow calculation values showing that the groundwater basin flows from south to northeast, center and north to southwest of the study area. The validation shows that the method applied for the study area gives a significant and reliable result
