| Marga | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Caraș-Severin County |
| Length: | 11km (07miles) |
| Source1: | Țarcu Mountains |
| Mouth: | Bistra |
| Mouth Location: | Marga |
| Mouth Coordinates: | 45.5243°N 22.5148°W |
| Basin Size: | 41km2 |
| Tributaries Left: | Nermeș |
The Marga is a left tributary of the river Bistra in Romania. It discharges into the Bistra in Vama Marga. Its length is 11km (07miles) and its basin size is 41km2.