The Tena Valley is a valley located at the southern side of the Pyrenees, in the Alto Gallego comarca, province of Huesca, and is crossed by the Gallego river from north to south. Its main town is Sallent de Gallego.

The valley is surrounded by 3,000m high mountains, like Balaitus, La Gran Facha or Los Infiernos.

The towns that form part of the valley are: Sallent de Gallego including the ski resort of Formigal, Lanuza, Escarrilla, Sandinies, Tramacastilla de Tena, Piedrafita, El Pueyo de Jaca, Panticosa, Hoz de Jaca, Bubal y Polituara.