The Lotrioara (in its uppermost course also: Sterpu and Voinegel) is a right tributary of the river Olt in Romania.

[1][2] It originates in the Lotru Mountains.

The Lotrioara discharges into the Olt in Lazaret.

[3] Its length is 25 km (16 mi) and its basin size is 120 km2 (46 sq mi).

This article related to a river in Sibiu County is a stub.