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The effects of Sub-Watersheds (SWs) on each other can be more important in Flood Generation Potential (FGP). Therefore, the present study aims for prioritizing SWs based on FGP using Multi-Criteria Decision Making (MCDM) Methods including Game Theory (GT), Best-Worst Method (BWM), Analytic Hierarchy Process (AHP), Analytical Network Process (ANP), Fuzzy Analytic Hierarchy Process (FAHP), Fuzzy Analytical Network Process (FANP) and comparing its results with Hydrological Modeling Approach (HMA) in the Cheshmeh-Kileh Watershed, Iran. In GT, Condorcet algorithm were used. The best and worst criteria were identi ed using the BWM and compared with other criteria. In AHP and ANP, expert opinions were used and the nal weight of criteria and alternative was calculated using Expert Choice and Super Decision softwares. ArcGIS10.1 software was also used to fuzzy and provide FAHP and FANP. In HMA, HEC-HMS software was used to calculate the discharge with return periods of 10-and 100-year, and nally, in all methods, FGP maps were prepared in three classes and SWs were prioritized. Based on the results of different methods, SWs 9, 2, 7, 10 and 11 were given high FGP priority. Downstream SWs were also in a noncritical state due to dense forest cover and low slope. A comparative evaluation between the methods showed that BWM had the same result as the eld evidence and HMA results and this method provided the best result. Based on SWs prioritization in BWM, high and low FGP were 33.33 and 46.67% of the study area, respectively. After BWM, GT gave a relatively good result. AHP, ANP, FAHP and FANP presented different results, but had poor performance in identifying critical areas. This study showed that optimal MCDM approaches can be used for ood management.

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