The Bârsa (in its upper course also: Bârsa Groșetului, German: Burzen) is a left tributary of the river Olt in Romania.

[1][2] It discharges into the Olt near Feldioara.

As several tributaries also have the name Bârsa, in order to differentiate them, the main course of the river is frequently referred to as Bârsa Mare.

The river Ghimbășel, formerly a direct tributary of the Olt, was redirected towards the Bârsa.

[2] The following rivers are tributaries to the river Bârsa (from source to mouth):[2] This article related to a river in Brașov County is a stub.