Abstract: The “system for fastening bathroom accessories” which is the object of this patent and whose preferred embodiment is that expressed in the title of the invention. Its structure is comprised of: a back piece for attachment to the wall, which has on its front side a protrusion shaped like a right rectangular prism; a bell-shaped trimming body of ellipsoid surface, the interior of which has a tubular volume for the prism, and a threaded hole for the passage of a set-screw for joining the piece, as well as an axial tubular extension in its polar region; a T-shaped tubular piece whose central arm is placed in the tubular extension, the two pieces being joined by means of a screw; two elastic sleeves which have straight depressions which form keys, with thickenings which fit into circumferential slots which are located in the ends of the rods whose function is to support the accessories.