In a leather-wound steering wheel, coating layers of synthetic resin are provided in the neighbor of a core of a ring portion which is gripped for steering. The coating layers are provided with fitting grooves provided along the sectional circumference of the ring portion. Pieces of leather covering the coating layers respectively are disposed so that their terminals provided along the sectional circumference of the ring portion are fitted into the fitting grooves in the ring portion core. Reduced portions each having a sectional outer circumference reduced toward the sectional center from general portions of the ring portion core are disposed in the regions of arrangement of the fitting grooves in the ring portion core so that the fitting grooves can be made deeper. Thus, there is provided a leather-wound steering wheel in which fitting grooves for leather terminals in a coating layer can be made deeper.