| Sora | |
| Source1 Location: | confluence of Selca Sora (Selščica) and Poljane Sora (Poljanščica) |
| Mouth Location: | Sava (near Medvode) |
| Mouth Coordinates: | 46.1391°N 14.4159°W |
| Subdivision Type1: | Country |
| Length: | 9km (06miles) |
| Source1 Elevation: | 330m (1,080feet) |
| Mouth Elevation: | 308m (1,010feet) |
| Discharge1 Avg: | 25m3/s (at the outflow) |
| Basin Size: | 636km2 |
The Sora (German: Zayer or Zeier) is a right affluent of the Sava River in western Slovenia. The Sora gathers its waters mainly from the Škofja Loka Hills. Its source branches are the Poljane Sora[1] [2] (Slovenian: Poljanska Sora, also Slovenian: Poljanščica), named after the Poljane Valley (Slovenian: Poljanska dolina), and the Selca Sora[1] [2] (Slovenian: Selška Sora, also Slovenian: Selščica), named after the Selca Valley (Slovenian: Selška dolina). The Poljane Sora is larger and is in length, while the Selca Sora is 32km (20miles) in length. They flow together in Škofja Loka and continue the flow as the Sora for the next until Medvode, where the Sora joins the Sava. Including the Poljane Sora, the Sora is 52km (32miles) in length. This makes it the 15th longest river of Slovenia.
The Sora is of torrential character and often floods. Its average discharge at the outflow is . Its largest discharge, measured in 1990, was 690m3/s.