Shading device for a transparent surface part of a motor vehicle having a shading structure, two non-parallel lateral guide arrangements fixed with respect to the vehicle and flanking a displacement travel of the shading structure on opposite sides, and a pull-out profile which, at opposite face sides, is displaceable by in each case one guide carriage, lateral shading structure sections protruding, in a manner dependent on the displacement travel of the shading structure, into lateral receiving spaces fixed with respect to the vehicle and assigned to the guide arrangements. Each lateral guide arrangement and the associated receiving space are integrated in one housing structure fixed with respect to the vehicle and having a guide slot for the passage of the guide carriage from the pull-out profile to a drive device the guide slot running along the displacement travel of the shading structure and opening toward the latter.