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Bun (French pronunciation: [bœ̃]) is a commune in the Hautes-Pyrénées department in southwestern France.

Arcizans-Dessus is a commune in the Hautes-Pyrénées department in southwestern France.

Gaillagos (French pronunciation: [ɡajaɡɔs]; Occitan: Galhagòs) is a commune in the Hautes-Pyrénées department in south-western France.

Aucun (French pronunciation: [okœ̃] ) is a commune in the Hautes-Pyrénées department in southwestern France. It relies on tourism, mountain activities such as mountain biking and hiking and in winter Nordic skiing.

Estaing (French pronunciation: [ɛstɛ̃]; Occitan: Estanh) is a commune in the Hautes-Pyrénées department in south-western France.

Ouzous is a commune in the Hautes-Pyrénées department in south-western France.

Arrens-Marsous (French pronunciation: [aʁɛ̃s maʁsus]; Occitan: Arrens e Marçós) is a commune in the Hautes-Pyrénées department in southwestern France. It was created in 1973 by the merger of two former communes: Arrens and Marsous. In the village, the Maison du Val d'Azun is an information centre and small museum of the area.

Ayzac-Ost is a commune in the Hautes-Pyrénées department of southwestern France.

The Bernard Lyot Telescope (Téléscope Bernard Lyot, or TBL) is a 2-meter Cassegrain telescope operating in the visible domain since 1980. It is located at an elevation of 2,877 meters on the Pic du Midi in the French Pyrenees. Since 2007, the Bernard Lyot Telescope has housed an echelle spectropolarimeter, NARVAL, which allows astronomers to probe stellar magnetic fields with exquisite sensitivity.

Boô-Silhen is a commune in the Hautes-Pyrénées department in southwestern France.

Lac d'Estaing is a lake in Hautes-Pyrénées, France. At an elevation of 1163 m, its surface area is 0.086 km2.

Saint-Pastous is a commune in the Hautes-Pyrénées department in south-western France.