Wiesmath is a municipality in the district of Wiener Neustadt-Land, in the Austrian state of Lower Austria. It lies in the eastern part of the country, within the federal province that surrounds Vienna.
As a municipality, Wiesmath is one of the local administrative units that make up the Wiener Neustadt-Land district, a district in southern Lower Austria. The surrounding region is part of the broader Alpine foothills area of eastern Austria.