Schwarzenberg () is a municipality in the Bregenz Forest in the western Austrian state of Vorarlberg, part of the district of Bregenz. Schwarzenberg has an area of 25.76 kmò. It lies south of Lake Constance. The village center is heritage-protected for its traditional rustic wooden houses.
According to the last count in September 2011, the municipality has 1810 inhabitants.
The Schubertiade Vorarlberg takes place every summer. It is a song and chamber-music festival, which focuses on compositions that are usually not played at larger concerts, mostly composed by Franz Schubert.