Flood management activities require the development of flood maps that depict the temporal and spatial variations in the inundation extent, depth, and velocity corresponding to a flood event. They are generated with the help of hydrodynamic models, which provide numerical solutions to the governing partial differential equations that describe the fluid flow. One of the major challenges in flood inundation modeling and mapping is understanding the uncertainties at every stage of these processes. While these uncertainties cannot be eliminated entirely, examining their impact on the simulated flood maps helps to develop better decisions for various activities in flood risk management, such as land-use and civil protection planning. The present research aims to understand the gaps in knowledge regarding the uncertainties in flood inundation modeling and develop guidelines to improve the accuracy of fluvial flood mapping. The proposed methodology will be conducted in river reaches with distinct geophysical settings. This seminar will demonstrate the need for uncertainty assessment in the fluvial flood inundation mapping process.