| Certej | |
| Name Other: | Csertés-patak |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Hunedoara County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Hondol, Certeju de Sus, Bârsău, Hărău |
| Length: | 18km (11miles) |
| Mouth: | Mureș |
| Mouth Location: | Bălata |
| Mouth Coordinates: | 45.905°N 22.9173°W |
| Basin Size: | 78km2 |
| Tributaries Left: | Nojag |
The Certej (Hungarian: Csertés-patak) is a right tributary of the river Mureș in Romania. It discharges into the Mureș near the city Deva. Its length is 18km (11miles) and its basin size is 78km2.