The Nile Delta aquifer in Egypt is one of the largest groundwater reservoirs in the world and has been severely affected by the seawater intrusion problem from the Mediterranean sea. Due to the huge exposure of the aquifer to the seawater, the seawater and the dispersion zone migrated tens of kilometers inland causing a major deterioration in the groundwater quality. In this paper, FEFLOW, a finite element model, is used to simulated the seawater intrusion problem in the Nile Delta aquifer in the areal view at the seawater level. A fine mesh with smaller elements near the boundaries and along the two River Nile branches was implemented to ensure the accurate representation of the groundwater flow and solute transport. The model was calibrated against available measurements of groundwater levels and salinity. A good agreement between the resulted dispersion zone and the observed one.