Beshtau (Russian: Бештау, from Turkic beş 'five' and tau 'mountain') is an isolated five-domed igneous mountain (volcano) in the northern vicinity of Pyatigorsk in the Northern Caucasus.

[1][2][3] It gave name to the historical region of Pyatigorye [ru] (literally "area of five mountains"), the town of Pyatigorsk, and the ethnonym Pyatigoryan Circassians [ru] or Pyatigortsy (Circassi Quinquemontani on old Western European maps).

The slopes are forested with ash, oak, hornbeam, and beech deciduous forests, and the summit is treeless.

10 [ru] of the Ministry of Medium Machine-Building (an euphemism for the Soviet nuclear industry), which were operating during 1950 – 1988.

By the foothill of the mountain there is the Second Athos Monastery of the Dormition [ru].