Sankt Veit, town, southern Austria. It lies along the Glan River north of Klagenfurt. Sankt Veit was the capital of the duchy of Kärnten (Carinthia) until 1518. Its town hall dates from 1468 and its old ducal castle from the 15th to 16th century. The Romanesque parish church was altered in the Gothic style in the 14th century. There are several castles in the vicinity, including the Frauenstein and Hunnenbrunn. A summer resort, Sankt Veit also has a pyrotechnical factory and sawmills. It is a market and service centre for the largely rural environs. Pop. (2006) 13,030.