To provide an instrument panel making it possible to reinforce a top surface with a simple structure and reduce a cost associated with reinforcement components, a weight or the like.

An instrument panel (100) in accordance with the present invention includes a top surface part 110 forming a top surface, a longitudinal surface part 120 that extends downward from the end on a vehicle rear side of the top surface part, and a three-surface rib 150 that is located on a vehicle front side near a boundary 130 between the top surface part and the longitudinal surface part, and has a flank wall 152, a front wall 154, and a lower wall 156, which are rectangular, assembled three-dimensionally. Out of the four sides of the flank wall, an upper side communicates with the top surface part and a lateral side on the vehicle rear side communicates with the longitudinal surface part. Out of the four sides of the front wall, an upper side communicates with the top surface part and one of lateral sides communicates with the lateral side on the vehicle front side of the flank wall. Out of the four sides of the lower wall, three sides communicate with the lower sides of the longitudinal surface part and flank wall respectively and the lower side of the front wall.