Grevillea prostrata, commonly known as the Pallarup grevillea, is a shrub of the genus Grevillea native to a small area in the Goldfields-Esperance region of Western Australia. The loose prostrate shrub typically grows to a height of 0.04 to 0.1 metres (0.13 to 0.33 ft) and a width of 0.8 to 1.2 metres (2.6 to 3.9 ft) which has non-glaucous branchlets. It has simple leaves with dissected and subpinnatisect blades that are 25 to 70 millimetres (0.98 to 2.76 in) long. It blooms from September to November produces an irregularly shaped white or cream inflorescence located on a raceme at the branchlet terminus. A rugose obovoid glandular hairy fruit follows.