| Râșnoava | |
| Name Other: | Valea Râșnoavei |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Brașov County |
| Mouth: | Prahova |
| Mouth Location: | Predeal |
| Mouth Coordinates: | 45.4868°N 25.5649°W |
| Tributaries Left: | Pârâul Stânei Mari, Valea lui Gheorghiță |
| Tributaries Right: | Brădetul, Ghebanul, Leuca |
| Custom Label: | Official River Code |
The Râșnoava or Valea Râșnoavei is a right tributary of the river Prahova in Romania. It flows into the Prahova near Predeal.