| Rudăria | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Caraș-Severin County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Eftimie Murgu |
| Length: | 25km (16miles) |
| Mouth: | Nera |
| Mouth Location: | Downstream of Prilipeț |
| Mouth Coordinates: | 44.925°N 22.0394°W |
| Basin Size: | 95km2 |
The Rudăria is a left tributary of the river Nera in Romania. It discharges into the Nera near Prilipeț. Its length is 25km (16miles) and its basin size is 95km2.