Sankt Gilgen is a village in the Austrian state of Salzburg, located in the Salzkammergut region. It sits on the shore of Lake Wolfgang (Wolfgangsee), within the district of Salzburg-Umgebung.
The village is part of the Salzkammergut, a lake-and-mountain area of central Austria known for its alpine scenery. Its position directly on Lake Wolfgang gives it a waterfront setting, and the surrounding terrain rises into the mountains of the region.
Sankt Gilgen is also known as the birthplace of Anna Maria Mozart, mother of Wolfgang Amadeus Mozart, and the town of Strobl and the market town of Mondsee lie nearby on the same lake.