Grevillea umbellulata is species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia.

It is a spreading shrub that forms a lignotuber, has linear to narrowly elliptic leaves, and cylindrical clusters of hairy, white to cream-coloured flowers often tinged with grey or pink.

The flowers are hairy, white to cream-coloured often with a pale grey or pink tinge, the pistil 5.5–8.0 mm (0.22–0.31 in) long.

Flowering occurs from July to November, and the fruit is a shaggy-hairy, narrowly oblong to oval follicle 8–12 mm (0.31–0.47 in) long.

[2][3][4][5] Grevillea umbellulata was first formally described in 1848 by Carl Meissner in Lehmann's Plantae Preissianae, the type specimen collected by James Drummond in the Swan River Colony.