The Bistra Mărului is a left tributary of the river Bistra in Romania.

[1][2] It discharges into the Bistra in Oțelu Roșu.

[3] Its length is 35 km (22 mi) and its basin size is 293 km2 (113 sq mi).

[2] The following rivers are tributaries to the river Bistra Mărului:

This article related to a river in Caraș-Severin County is a stub.