Abstract: Riverbank slope failures are a major concern in many regions of the Philippines, particularly in low-lying areas and near major rivers, where recurrent flooding and soil erosion can cause significant infrastructure damage. Accurate assessment of slope stability is crucial for mitigating these risks, and various methods are available to calculate the Factor of Safety (FOS) for slopes. This study compares the FOS values for riverbank slope stability using five common methods of slices: the Morgenstern-Price, Janbu, Bishop, Ordinary, and Spencer methods. There are three hundred seventy-five (375) simulations that were used in the slope stability analysis from the six (6) riverbank slopes and 15 different soil properties. A statistical analysis (ANOVA) revealed no significant differences in FOS values among the methods, indicating that all are reliable for assessing the stability of riverbank slopes. However, the methods demonstrated varying sensitivities to changes in soil properties and slope angles, underscoring the importance of considering their specific assumptions and limitations in practical applications. Further research is recommended to examine the effects of fluctuating water levels, seismic activity, and other environmental factors on slope stability, as well as to explore the integration of advanced numerical methods, such as finite element analysis, for deeper insights into slope failure mechanisms.