Pottenstein is a town in the district of Baden, in the state of Lower Austria, Austria. It lies in the eastern part of the country, within the federal province of Lower Austria, whose capital is St. Pölten.
The town is administratively part of the Baden district, one of the districts that make up Lower Austria. As a municipality, it forms part of the broader Wienerwald and Triestingtal area south of Vienna, though its official status is that of a town within the Baden district.
Pottenstein shares its name with several other places, including a well-known town in Bavaria, Germany, but this article concerns the Austrian town in Lower Austria. Its position within the Baden district places it in the same administrative unit as the spa town of Baden bei Wien.