| Cernat | |
| Name Other: | Preotesele |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Argeș County |
| Length: | 18km (11miles) |
| Mouth: | Râul Doamnei |
| Mouth Coordinates: | 45.3899°N 24.7997°W |
| Basin Size: | 63km2 |
| Tributaries Left: | Plăișoru |
| Tributaries Right: | Valea Maliței, Gruișoru, Basa |
The Cernat is a right tributary of the Râul Doamnei in Romania. The upper reach of the river is also known as Preotesele. It flows into the Râul Doamnei north of the village Slatina. Its length is 18km (11miles) and its basin size is 63km2.