Grevillea hislopii is a species of flowering plant in the family Proteaceae and is endemic to a restricted area of the south-west of Western Australia.

It is a dense, single-stemmed shrub with linear to narrow elliptic leaves and clusters of hairy, whitish-grey flowers.

[2] Grevillea hislopii was first formally described in 2008 by Peter M. Olde and Neil R. Marriott in the journal Nuytsia from specimens they collected near Perth in 2002.

[2][4] This grevillea grows in open woodland near creeks and drainage lines in a small area west of York in the Jarrah Forest bioregion of south-western Western Australia.

[2][5] Grevillea hislopii is listed as "Priority Two" by the Western Australian Government Department of Biodiversity, Conservation and Attractions,[5] meaning that it is poorly known and from only one or a few locations.