The Aggenstein is a mountain, 1,986 metres high (according to German survey: 1,985.4 m[1]) in the Allgäu Alps on the border Bavaria, Germany and Tyrol, Austria.

It is located in the Bavarian part of the Tannheim Mountains, a few kilometres south of Pfronten (Ostallgäu).

The prominence of the Aggenstein is at least 266 metres,[2] its isolation is 1.8 kilometres, the Brentenjoch being the reference peak.

Media related to Aggenstein at Wikimedia Commons