Beaucarnea olsonii is a plant in the family Asparagaceae, native to Mexico. The species is named for the botanist Mark E. Olson.
Beaucarnea olsonii grows as a tree-like plant up to 5m (16feet) tall. The trunk is greatly swollen at the base, with a diameter of up to 4m (13feet). Its gray bark is scaly. The sword-shaped leaves measure up to 85cm (33inches) long. Its inflorescences bear whitish flowers.
Beaucarnea olsonii is endemic to Mexico, where it is found in Puebla and Oaxaca. Its habitat is in deciduous forests, on hillsides at altitudes of NaNm (-2,147,483,648feet).
Beaucarnea olsonii has been assessed as endangered on the IUCN Red List. It is threatened by conversion of its habitat for agriculture and human settlement and by fires. The species does not occur in any protected areas.