The Arpaș (Hungarian: Árpás-patak) is a left tributary of the river Olt in Romania.

[1][2] It discharges into the Olt in Arpașu de Jos.

[3] The source of the Arpaș is in the Făgăraș Mountains.

[2] The Hungarian name means "barley".

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