Sabiñanigo is a municipality located in the province of Huesca, Aragon, Spain, capital of the comarca of Alto Gallego. Formerly, the region was called Serrablo, the reason for the demonym "serrablese". Sabiñanigo is at an altitude of 780 meters and lies 52 km from Huesca.

It borders to the North on the municipalities of Biescas and Yebra de Basa; to the East on Fiscal and Boltaña; to the South on Las Peñas de Riglos; to the South-East on the Somontano de Barbastro and to the West on the municipalities of Caldearenas, Jaca and Villanua.

Sabiñanigo is located between the valleys of the Aurin and Gallego rivers in the north and between the valleys of Basa and Guarga in the south. It covers an area from the Interior Range to the Exterior Range of The Pyrenees.

It has a large variety of ecosystems and landscapes, rich traditional architecture and modern facilities. In the late 1970s the city celebrated the 2000th anniversary of its foundation by the Romans.

Sabiñanigo has always been strongly linked to sport and, especially, to cycling. It is famous for holding "The Quebrantahuesos" one of the most important amateur cyclist races in the world. It is also a frequent start and finish point of the Vuelta a España.

Sabiñanigo is a great place to go skiing. It is 30 km from the Ski resort of Panticosa, 38 km from Formigal (the largest ski resort in Spain), 44 km from Candanchu, 47 km from Astun and 120 km from Cerler.

Some interesting places to visit are the "Museo de Artes de Serrablo" a museum that contains tools, clothes and all kinds of traditional objects of the region; and "Pirenarium", a theme park with a great collection of models of the Pyrenees range and the most famous buildings of Aragon.