La Jacetania (; ) is a comarca in northern Aragon, Spain. It is located in the northwestern corner of the Huesca and Zaragoza provinces. The administrative capital is Jaca, which with a population of 13,374 is the largest town in the comarca. The area is famous for its ski resorts.

Jacetania is bordered by France to the north and Navarre to the west. Most of its territory is mountainous, with the ranges of the Pyrenees and Pre-Pyrenees covering most of its area. The name of the comarca originates in the ancient Iberian tribe of the Iacetani ().

This comarca was the birthplace of the historic County of Aragon.

Municipal terms The traditional names of the towns, when different from the official name, are in brackets. Aísa Candanchú Esposa Sinués Ansó Aragüés del Puerto (Aragüés de lo Puerto) Artieda Ascara Bailo Borau Canal de Berdún (A Canal de Berdún) Canfranc Canfranc Estación Castiello de Jaca (Castiello de Chaca) Aratorés Fago Jaca (Chaca) Jasa (Chasa) Mianos (Mians) Puente la Reina de Jaca (Puent d'a Reina de Chaca) Salvatierra de Esca (Salvatierra d'Esca) Santa Cilia Santa Cruz de la Serós (Santa Cruz d'as Serors) Sigüés Valle de Hecho (Val d'Echo) Villanúa (Villanuga)

See also County of Aragon Pyrenees

References

Official Map Comarcas de Aragón, La (https://www.jacetania.es/ jacetania)