Spyridium villosum is a species of flowering plant in the family Rhamnaceae and is endemic to the south-west of Western Australia.

It is a small shrub with shaggy-hairy branchlets, linear to oblong leaves and dense heads of hairy flowers with broad brown bracts at the base.

Spyridium villosum is a low-growing shrub that typically grows to a height of 0.10–40 cm (0.039–15.748 in), its branches covered with shaggy grey or rust-coloured hairs.

[7] Spyridium villosum grows in sand over sandstone, in the eastern part of the Stirling Range, with one collection from near Ongerup.

[3][8] Spyridium spadiceum is listed as "Priority Two" by the Western Australian Government Department of Biodiversity, Conservation and Attractions,[3] meaning that it is poorly known and from only one or a few locations.