Biescas is a town in Aragon, Spain. It is located in the Tena Valley, in the Aragonese Pyrenees. It has a long history and one of its oldest houses is called Casa Josito: this house was built in 1789, the same year as the French Revolution.
Other towns in Biescas municipality: Ainielle, Aso de Sobremonte, Barbenuta, Berbusa, Betés de Sobremonte, Bubal, Casbas de Jaca, Escuer Alto, Escuer Bajo, Espierre, Gavín, Oliván, Orós Alto, Orós Bajo Piedrafita de Jaca, Susín, Jabierre del Obispo y Yosa de Sobremonte.
In August 1996, 86 people were killed by a flood in Las Nieves camping.