A fastening system for the fastening of a sanitary article comprising a carrier element, at least one upper stop portion which lies on the carrier element and which strikes against an upper stop of the sanitary article, at least one lower stop portion which lies on the carrier element and which strikes against a lower stop of the sanitary article, and at least one clamping element. At least one of the stop portions is mounted on the carrier element so as to be displaceable with respect to the carrier element, and is connected to the at least one clamping element in such a way that, as a result of actuation of the clamping element, the stop portion can be displaced in a direction of actuation such that the two stop portions can be braced between the two stops of the sanitary article.