| Sadău | |
| Pushpin Map: | Romania#Ukraine Chernivtsi Oblast |
| Subdivision Type1: | Country |
| Subdivision Name1: | Ukraine, Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Chernivtsi O., Suceava C. |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Sadău |
| Mouth: | Suceava |
| Mouth Location: | Sadău |
| Mouth Coordinates: | 47.8773°N 25.403°W |
The Sadău (Ukrainian: Садеу|Sadeu) is a left tributary of the river Suceava.[1] Its source is located south of Dolishniy Shepit in Ukraine. The river then crosses the border into Romania, joining the Suceava near the village of Sadău.[2] In Romania, its length is 7km (04miles) and its basin size is 18km2.