| German Thaya | |
| Source1 Location: | near Schweiggers |
| Mouth Location: | Raabs an der Thaya |
| Mouth Coordinates: | 48.8478°N 15.4903°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Austria |
| Subdivision Type2: | State |
| Subdivision Name2: | Lower Austria |
| Length: | 98.2km (61miles) |
| Source1 Elevation: | 657.5m (2,157.2feet) |
| Mouth Elevation: | 410m (1,350feet) |
| Discharge1 Avg: | 4.4m3/s |
| Basin Size: | 770km2 |
The German Thaya or Austrian Thaya (German: Deutsche Thaya, Czech: Rakouská Dyje) is a river in Lower Austria. Its drainage basin is .[1]
Despite its name, no part of the river is in Germany. It originates southwest of Schweiggers at an elevation of . First, it flows in north-easterly direction to the village of Vitis, where it is joined by the left tributary Jaudlingbach. It flows further eastward to Schwarzenau and gradually turns to the north, zig-zagging through Waidhofen, Thaya, and Dobersberg. Then it turns to the east and southeast, flowing through Karlstein and Raabs, where it joins the Moravian Thaya.
From here the unified Thaya flows generally eastward into the Czech Republic.
Eduard Mörike's 1856 novella mentions the German Thaya, claiming that Mozart and his wife crossed it on September 14, 1787 (see Mozart in fiction).