Adenanthos oreophilus, commonly known as woollybush, is a species of tall shrub endemic to southwest Western Australia.

It is closely related to the better known A. sericeus (Albany woollybush), and was only classified as a species distinct from the latter in 1978 by Irish botanist E. Charles Nelson.

[1][2] Botanical collections attributable to this species date back at least to the middle of the 19th century, but the taxon was long regarded merely as a form of A. sericeus.

He based his concept of the species on a specimen collected by him in 1973 from East Mount Barren in the Fitzgerald River National Park.

[2] By this time, the ICBN had issued a ruling that all genera ending in -anthos must be treated as having masculine gender, so A. oreophila became A. oreophilus.