| Bistra Mărului River | |
| River | |
| Countries | Romania |
|---|---|
| Counties | Caraș-Severin County |
| Villages | Poiana Mărului, Măru |
| Source | |
| - location | Țarcu Mountains |
| Mouth | Bistra |
| - location | Oțelu Roșu |
| - coordinates | 45°31′43″N 22°22′27″E / 45.5285°N 22.3743°ECoordinates: 45°31′43″N 22°22′27″E / 45.5285°N 22.3743°E |
| Progression | Bistra→ Timiș→ Danube→ Black Sea |
The Bistra Mărului River is a left tributary of the river Bistra in Romania. It discharges into the Bistra in Oțelu Roșu.
The following rivers are tributaries to the river Bistra Mărului: