ABSTRACT Natural and manmade hazards and their destructive nature can seriously restrict economic development due to the loss of life and the destruction of property. It is the premise of this study that Geographic Information System (GIS) can be a useful tool for hazard identification and analysis for implementing mitigation strategies. Flooding is a natural phenomenon that occurs in Bangladesh almost every year with varied intensity. In this study GIS was used as a tool for flood hazard analysis, taking Nabinagar Upazila of Brhamanbaria District as a case study because of its geo-physical characteristics. The leading objectives of this study were to determine the Highest Flood Level (HFL) for a determined return period (25 years) and to analyze both the physical and economic damage caused by the determined flood level. Using a deterministic approach of flood level prediction, highest flood level was determined by analyzing the previous 40 years’ highest water level da