Dyje

The Thaya ( ) is a river in Central Europe, the longest tributary to the Morava River. It is about 235 km (311 km with its longest source) long and meanders from west to east in the border area between Lower Austria (Austria) and South Moravia (Czech Republic), though the frontier does not exactly follow the river's course in most parts. Its source is in two smaller rivers, namely the German Thaya (Deutsche Thaya) and the Moravian Thaya (, ), flowing together at Raabs.