This study investigates the origin of landforms exposed within the study area (i.e. structural or non-structural) and inspects their role in triggering devastating flash floods, and agitating landslides, over southwest Marsa Allam city, Egypt. This landform analysis was performed based on the processing of 30 m Shuttle Radar Topography Mission Digital Elevation Model (SRTM DEM) and multispectral remotely sensed data in a GIS environment, as well as, fieldwork. The output slope map classified the areas of high slopes which may prone to hazards and erosion (mass wasting). Aspect map and comprehensive morphometric analysis assisted in the deduction of directions and areas highly vulnerable to flash floods. The main geomorphologic units of the study area constitute mountainous basement terrain, pediment, alluvial fans, and coastal plain, as well as, other local structurally reflected forms. Results are integrated to highlight landslides and Flash flood-prone sites differentiated into three categories: slight, moderate, and high. Flood mitigation measures are suggested to reduce flash flood damage and store floodwater.