| Monoroștia | |
| Name Other: | Monorostyai-patak |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Arad County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Monoroștia |
| Length: | 12km (07miles) |
| Mouth: | Mureș |
| Mouth Location: | Monoroștia |
| Mouth Coordinates: | 46.0913°N 22.0102°W |
| Basin Size: | 31km2 |
The Monoroștia (Hungarian: Monorostyai-patak|Monorostyai-patak) is a right tributary of the river Mureș in Romania. It discharges into the Mureș in the village Monoroștia. Its length is 12km (07miles) and its basin size is 31km2.