| Oarța | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Maramureș County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Oarța de Sus, Orțița, Oarța de Jos |
| Length: | 12km (07miles) |
| Source1: | Asuaju Hills |
| Mouth: | Sălaj |
| Mouth Coordinates: | 47.454°N 23.1751°W |
| Basin Size: | 31km2 |
| Tributaries Right: | Stânjaru |
The Oarța is a left tributary of the river Sălaj in Romania. It flows into the Sălaj near Oarța de Jos.[1] Its length is 12km (07miles) and its basin size is 31km2.