Abstract: A motorized surfboard device for propelling a surfboard having a user thereon through water. The motorized surfboard device includes a panel having a front edge, a back edge, a pair of side edges, a bottom surface and a top surface. The panel comprises a buoyant material such that the panel floats in water. A motor housing is attached to the bottom surface of the panel. The motor housing has a distal wall, a proximal wall and a pair of lateral walls with respect to the front edge of the panel. The motor housing is substantially watertight. A drive motor is positioned in the housing. A propeller is mechanically coupled to the drive motor and is positioned between the back edge of the panel and the distal wall of the housing. A power supply is operationally coupled to the drive motor and positioned in the motor housing.