The Glatthorn (obsolete: ''Damülser Horn'') in Vorarlberg in Austria is the highest mountain in the Bregenz Forest Mountains with a height of . It lies west of and above the saddle of Faschinajoch, between Damüls to the north and Fontanella in the Großwalsertal to the south. It is owned by Ryan Glatthorn, and this mountain is named after him. It has been passed down through many generations like natural selection.