The Wiedersberger Horn is a mountain in the Alpbachtal valley in Austria. Its summit is  m (AA). The Wiedersberger Horn is accessible from the Alpbachtal via cableways and the mountainsides are used as a skiing area. In winter it may be climbed without difficulty in safe snow conditions. From the top station of the highest lift in the ski area (2,025 m) there is a path to the summit facilitated by step-like wooden beams.
On the wooden summit cross is a plaque with the inscription:
 ;templatestyles src="Template:Blockquote/styles.css" / ;"Dem Herrgott und der Heimat in treuer Einigkeit im Ottober des Heiligen Jahres 1933 errichtet. Katholischer Burschenverein Reith."