| Râoaia | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Maramureș County |
| Length: | 15km (09miles) |
| Source1: | Lăpuș Mountains |
| Source1 Coordinates: | 47.5939°N 24.065°W |
| Source1 Elevation: | 615m (2,018feet) |
| Mouth: | Lăpuș |
| Mouth Location: | Lăpuș |
| Mouth Coordinates: | 47.505°N 24.0144°W |
| Mouth Elevation: | 401m (1,316feet) |
| Basin Size: | 48km2 |
The Râoaia is a left tributary of the river Lăpuș in Maramureș County, Romania. It discharges into the Lăpuș in the town Lăpuș. Its length is 15km (09miles) and its basin size is 48km2.
The following rivers are tributaries to the river Râoaia: