| Cumpăna | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Argeș County |
| Length: | 12km (07miles) |
| Mouth: | Topolog |
| Mouth Coordinates: | 45.3664°N 24.4999°W |
| Basin Size: | 26km2 |
| Tributaries Left: | Peneș |
The Cumpăna is a left tributary of the river Topolog in Romania. It flows into the Topolog north of Sălătrucu. Its length is 12km (07miles) and its basin size is 26km2.[1]