| Cheia | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Alba County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Ponor, Vale în Jos, Sub Piatră |
| Length: | 18km (11miles) |
| Source1: | Trascău Mountains |
| Mouth: | Arieș |
| Mouth Location: | Sălciua de Jos |
| Mouth Coordinates: | 46.406°N 23.446°W |
| Basin Size: | 53km2 |
| Tributaries Right: | Poieni |
The Cheia is a small river in the Apuseni Mountains, Alba County, western Romania. It is a right tributary of the river Arieș. It flows through the villages of Ponor and Vale în Jos, and joins the Arieș near the village Sub Piatră.[1] Its length is 18km (11miles) and its basin size is 53km2.