Oreocereus doelzianus is a species of cacti native to Peru.

Oreocereus doelzianus grows as a shrub with richly branched, cylindrical, olive-green shoots from the base and reaches heights of growth of up to 1 meter with a diameter of 6 to 8 cm (2.4 to 3.1 in).

The four crossed central spines are strong and up to 4 cm (1.6 in) long.

[2] Recognized Subspecies:[3] Oreocereus doelzianus is distributed in the Peruvian regions of Huancavelica and Ayacucho at altitudes of 2500 to 3000 meters.

The specific epithet doelzianus honors the German lawyer and cacti lover Bruno Dölz (1906–1945), who was President of the German Cactus Society from 1941 to 1945.