A vehicle body structure includes a dash panel separating a vehicle front part from a vehicle cabin, a front side member extending longitudinally of a vehicle body in the vehicle front part and having ends located rearward of the vehicle body, opposite to the dash panel, a floor frame member forming a floor frame of the vehicle cabin, and a plate-shape reinforcing member disposed further toward a center of the vehicle cabin with respect to the dash panel and the floor frame member to be opposite to the ends of the front side member. The reinforcing member includes an upper portion secured to the dash panel and a lower portion secured to the floor frame member, and has a curvature that is smaller than a curvature of the dash panel.