Luxsar, Mountain summit in Nor Lípez Province, Bolivia.

Luxsar is a mountain summit in Nor Lipez Province in southwestern Bolivia, rising to about 5,500 meters in elevation. The peak stands in a dry highland region surrounded by salt flats and neighboring Andean summits.

Luxsar appears in Bolivian and international records under several names: Luxsar, Luxar, Llixar and Luxor, and the Quechua article calls it Luksur urqu. Its elevation is given as 5,504 m in one source and 5,398 m in the Quechua entry, which places the peak in the Pilquya canton of Quemes Municipality, Nor Lípez Province, Potosí Department, north of the Chiwana salt flat. The Smithsonian's Global Volcanism Program lists it among Bolivian peaks.

The mountain's Quechua name, Luksur urqu, appears in local records alongside the Spanish forms Cerro Luxor, Luxsar and Luxar, and the peak gives its name to the surrounding Pampa Luksar plain. It stands in Pilquya canton of Quemes Municipality, near the northern edge of the Chiwana salt flat.

Luxsar lies in the Quemes Municipality of Nor Lípez Province, north of the Salar de Chiguana and west of the Salar de Uyuni, reached via the village of Quemes. The summit is given as 5,504 m by one source and 5,398 m by another, so plan for the higher figure. Approach from the salt-flat side, where the terrain is open and the peak can be seen from a distance.

The summit rises to 5,504 m, while the Quechua Wikipedia article gives 5,398 m; the two figures differ by about 100 m. The peak stands in the Pilquya canton of Quemes Municipality, north of the Chiwana salt flat and near the Uyuni salt flat.