Cryosophila williamsii, also known as Lago Yojoa palm or root-spine palm is a species of flowering plant in the family Arecaceae.

Cryosophila williamsii is named in honor of prominent botanist Louis Otho Williams.

[2] The IUCN classified this plant as Critically Endangered, and it is assumed there are 200-270 mature individuals in the wild.

[1] Threats to this species include climate change and selective harvesting for ornamental purposes.

The species' habitat has been largely converted to agriculture.