| Rosua | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Bistrița-Năsăud County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Cepari, Blăjenii de Jos, Șintereag |
| Length: | 21km (13miles) |
| Mouth: | Șieu |
| Mouth Location: | Șintereag |
| Mouth Coordinates: | 47.1722°N 24.2962°W |
| Basin Size: | 138km2 |
| Tributaries Left: | Valea Aurului, Valea Lungă, Valea Blăjenilor |
The Rosua is a right tributary of the river Șieu in Romania. It discharges into the Șieu in Șintereag. Its length is 21km (13miles) and its basin size is 138km2. Its tributaries are Valea Aurului, Valea Lungă and Valea Blăjenilor, all from the left.