The ever-increasing demand of a fast water transportation system in lake Tana inspires me to make a study the hydrodynamic nature of boats. So as to justify the hydrodynamic characteristics, the shape of the hull is studied in detail. From the scratch, a boat hull is designed with reference to existing boat hull dimensions which are being used in lake Tana. After the initial design has been done, it has been simulated in Ansys fluent to make it ready for parametrization. The response surface optimization technology from design explorer in the Ansys workbench is used to search design candidates by optimizing drag force. With design candidates of optimization output, the hull body is redesigned and its performance is evaluated by keeping some parameters constant. After performance evaluation, the optimized design has been found to have better speed. The initial design, which is supposed to have equivalent performance with the existing boat hull in lake Tana, has 14.4m/s. However, with one of the optimized candidate, the speed of the boat is increased to 15.4m/s. The results of simulation of the optimized hull is compared against its analytical performance with respect to drag force and dynamic pressure. The analytical result of drag force which is around 23252N is smaller than the Ansys results of both with structured mesh and unstructured mesh. On the other hand, the analytical result of dynamic pressure is greater than the Ansys results of dynamic pressure of both with structured and unstructured mesh. From this we can say that as the dynamic pressure is increasing the drag force is decreasing.