| Mouca | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Bihor County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Valea lui Mihai, Șimian |
| Length: | 13km (08miles) |
| Mouth: | Salcia |
| Mouth Coordinates: | 47.4442°N 22.0733°W |
| Progression: | Salcia→ |
| Basin Size: | 55km2 |
| Custom Label: | River code |
| Custom Data: | III.1.44.33.28.10.1 |
The Mouca is a left tributary of the river Salcia in Romania. It flows into the Salcia near Șilindru. Its length is 13km (08miles) and its basin size is 55km2.