This paper presents a GIS based methodological approach for landslide danger assessment, applied to the coast of Dakar. By the combination of analysis, interpretation, and evaluation of geo-morphological, geological and geotechnical data utilizing GIS, valuable results were gained regarding instability factors, slide kinematics, simulation of slope failure and coast dynamics. This led to a thorough assessment and strong reduction of the subjectivity in the slope stability and hazard analysis and to the development of an objective landslide danger map of the SW coast of Dakar. Analysis of the results shows that the slides were influenced by
the geotechnical properties of the soil, the weathering, the hydrogeological situation and erosion by waves. The hazard analysis based on this methodological approach has allowed an appropriate and adequate consideration of the multiple factors affecting the stability, the optimization of planning and investment for land development in the city and the elaboration of stabilization measures according to the instability factors.