Bierge ([ˈbjeɾ.xe]; Aragonese: Biarche) is a municipality located in the province of Huesca, Aragon, Spain.

According to the 2010 census (INE), the municipality has a population of 258 inhabitants.

Bierge is at 600 meters on the sea, and it has the following villages: In the mountain, near Nasarre and Otín, is the Dolmen Losa de la Mora.

Crucial scenes of the film The Invisible Guest take place in Bierge.

This article about a location in the Province of Huesca is a stub.