| Grosul | |
| Name Other: | Gróssi-patak |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Arad County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Groșii Noi, Dumbrăvița, Căpruța |
| Length: | 20km (10miles) |
| Mouth: | Mureș |
| Mouth Location: | Căpruța |
| Mouth Coordinates: | 46.0878°N 22.021°W |
| Basin Size: | 81km2 |
| Tributaries Right: | Ușoiu, Plișca |
The Grosul (Hungarian: Gróssi-patak) is a right tributary of the river Mureș in Romania. It discharges into the Mureș in Căpruța. Its length is 20km (10miles) and its basin size is 81km2.