Sabiñánigo (Samianigo in Aragonese) is a municipality located in the province of Huesca, Aragón, Spain, capital of the comarca of Alto Gállego. Formerly, the region was called Serrablo, hence the demonym "serrablese".Sabiñánigo is at an altitude of 780 m and lies 52 km from Huesca. It borders to the north the municipalities of Biescas and Yebra de Basa; to the east Fiscal and Boltaña; to the south on Las Peñas de Riglos; to the south-east the Somontano de Barbastro and to the west the municipalities of Caldearenas, Jaca and Villanúa.