| Pătac | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Buzău County |
| Length: | 10km (10miles) |
| Source1: | Mount Dealul Bătrân |
| Source1 Location: | Buzău Mountains |
| Source1 Coordinates: | 45.6628°N 26.3492°W |
| Source1 Elevation: | 1225m (4,019feet) |
| Mouth: | Bâsca |
| Mouth Coordinates: | 45.5908°N 26.3358°W |
| Mouth Elevation: | 835m (2,740feet) |
| Basin Size: | 18.5km2 |
| Tributaries Right: | Husăuș |
The Pătac is a left tributary of the river Bâsca in Romania. Its length is 10km (10miles) and its basin size is 18.5km2.[1]