A self-punching functional element which is configured for punching into a workpiece, in particular into a sheet metal part, comprising - a head part forming a flange; and - a punching section which extends away from the head part, which is in particular arranged coaxially to a central longitudinal axis of the functional element and which has a peripheral punching edge, wherein the head part has a contact surface for contact with the workpiece, said contact surface at least sectionally surrounding the punching section at a radial outer side, and a boundary section which at least sectionally bounds the contact surface at the radial outer side and which extends away from the contact surface in the same direction as the punching section; and wherein an inner wall of the boundary section facing the punching section and an outer wall of the punching section facing the boundary section are arranged at least sectionally obliquely to the longitudinal axis of the functional element so that the inner wall and the outer wall each form an undercut in at least one plane including the longitudinal axis, wherein the inner wall, the contact surface and the outer wall define a ring space, characterized in that at least one rib extends from the inner wall toward the punching section in the radial direction and extends away from the contact surface in the axial direction, with the axial extent of the rib decreasing from the outside to the inside, and in that at least one base extends from the outer wall toward the boundary section in the radial direction and extends away from the contact surface in the axial direction, wherein a plurality of ribs and bases are provided which are arranged uniformly distributed in the peripheral direction and which are arranged offset from one another, and wherein a radial extent of the ribs and the bases each amounts to more than 50% of the width of the ring space so that said ribs and bases overlap viewed in the peripheral direction, and wherein the ribs are in communication with sections of the inner wall which are not inclined radially inwardly. - a head part forming a flange; and - a punching section which extends away from the head part, which is in particular arranged coaxially to a central longitudinal axis of the functional element and which has a peripheral punching edge, wherein the head part has a contact surface for contact with the workpiece, said contact surface at least sectionally surrounding the punching section at a radial outer side, and a boundary section which at least sectionally bounds the contact surface at the radial outer side and which extends away from the contact surface in the same direction as the punching section; and wherein an inner wall of the boundary section facing the punching section and an outer wall of the punching section facing the boundary section are arranged at least sectionally obliquely to the longitudinal axis of the functional element so that the inner wall and the outer wall each form an undercut in at least one plane including the longitudinal axis, wherein the inner wall, the contact surface and the outer wall define a ring space, characterized in that at least one rib extends from the inner wall toward the punching section in the radial direction and extends away from the contact surface in the axial direction, with the axial extent of the rib decreasing from the outside to the inside, and in that at least one base extends from the outer wall toward the boundary section in the radial direction and extends away from the contact surface in the axial direction, wherein a plurality of ribs and bases are provided which are arranged uniformly distributed in the peripheral direction and which are arranged offset from one another, and wherein a radial extent of the ribs and the bases each amounts to more than 50% of the width of the ring space so that said ribs and bases overlap viewed in the peripheral direction, and wherein the ribs are in communication with sections of the inner wall which are not inclined radially inwardly.