| Râul Mare | |
| Name Other: | Valea Prăpăstiilor |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Brașov County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Zărnești |
| Length: | 11km (07miles) |
| Source1: | Piatra Craiului Mountains |
| Mouth: | Bârsa |
| Mouth Location: | Zărnești |
| Mouth Coordinates: | 45.5626°N 25.3177°W |
| Basin Size: | 22km2 |
| Tributaries Left: | Valea Cheii, Dănișor |
The Râul Mare (also: Valea Prăpăstiilor) is a right tributary of the river Bârsa in Romania. It flows into the Bârsa in Zărnești.[1] Its length is 11km (07miles) and its basin size is 22km2.