| Sadu | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Sibiu County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Râu Sadului, Sadu, Tălmaciu |
| Length: | 60km (40miles) |
| Discharge1 Location: | |
| Discharge1 Avg: | 3.74m3/s |
| Source1: | Cindrel Mountains |
| Mouth: | Cibin |
| Mouth Location: | Tălmaciu |
| Mouth Coordinates: | 45.6599°N 24.2666°W |
| Basin Size: | 278km2 |
| Tributaries Right: | Sădurel |
The Sadu (Hungarian: Cód) is a right tributary of the river Cibin in Romania. It discharges into the Cibin in Tălmaciu.[1] The Negovanu and Sadu II dams are located on the Sadu. Its length is 60km (40miles) and its basin size is 278km2.
The following rivers are tributaries to the river Sadu (from source to mouth):