The Thaya is a river in the Czech Republic and Austria, a right tributary of the Morava River. It flows through the South Moravian Region in the Czech Republic and through Lower Austria in Austria. It is formed by the confluence of the German Thaya and Moravian Thaya rivers. Together with the German Thaya, which is its main source, the Thaya is 311 km long. Without the German Thaya, it is 235.4 km long. In the Czech Republic, the Thaya is the seventh longest river in the country with a length of 196.2 km .
