Abstract: A leaf spring to be clamped between a saddle of the vehicle axle and a clamping plate by means of two connecting elements spaced from one another in a longitudinal direction has an elongated spring member extending in the longitudinal direction, and is composed of a fiber-reinforced duro-plastic synthetic material. At least two supporting plates each have a length exceeding the length of the saddle or of the clamping plate, and each have an inner region located inside the connecting elements, and an outer region located outside the connecting elements. One of the supporting plates is located at one side of the spring member, so as to be arranged between the spring member and the saddle, the other of the supporting plates is located at the other side of the spring member so as to be located between the spring member and the clamping plate.