| Rabiosa | |
| Subdivision Type1: | Country |
| Subdivision Type2: | Location |
| Subdivision Name2: | Canton of Grisons, Switzerland |
| Subdivision Type3: | Reference no. |
| Subdivision Name3: | CH: 321 |
| Length: | 7.9 km [1] |
| Source1 Location: | Am Fulhorn |
| Mouth Location: | Near Meiersboden into the Plessur |
| Progression: | Plessur→ |
| Basin Size: | 52.6 km2 [2] |
| Custom Label: | References |
The Rabiosa, also called the Rabiusa or, on in the municipality of Malix, the Landwasser (Alemannic),[3] is a 7.9-kilometre-long, left-hand tributary of the Plessur in the Swiss Canton of Grisons.