The Agăș (Hungarian: Ágas) is a left tributary of the river Trotuș in Romania.

[1][2] It flows into the Trotuș in the village Agăș.

[3] Its length is 9 km (5.6 mi) and its basin size is 16 km2 (6.2 sq mi).

[2] The Agăș is the source of the water supply system of the village of Agăș.

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