| Cad | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Harghita County |
| Length: | 13km (08miles) |
| Mouth: | Olt |
| Mouth Location: | Downstream of Mădăraș |
| Mouth Coordinates: | 46.4742°N 25.7621°W |
| Basin Size: | 24km2 |
The Cad is a left tributary of the river Olt which flows through Romania. It merges into the Olt near Mădăraș. It is 13km (08miles) long and its river basin covers an area of 24km2.