| Aluniș | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Prahova County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Aluniș |
| Length: | 10km (10miles) |
| Source1: | near Pietriceaua |
| Mouth: | Vărbilău |
| Mouth Location: | Ostrovu |
| Mouth Coordinates: | 45.1952°N 25.9012°W |
| Progression: | Vărbilău→ |
| Basin Size: | 63km2 |
| Tributaries Left: | Bertea |
The Aluniș is a right tributary of the river Vărbilău in Romania. It flows into the Vărbilău in Ostrovu. Its length is 10km (10miles) and its basin size is 63km2.