Grevillea olivacea, commonly known as olive grevillea, is a shrub which is endemic to the south-west of Western Australia. It grows up to 4 metres in height and produces red, orange or yellow flowers between June and October (early winter to mid spring ) in its native range. It occurs in coastal areas between Coolimba and Jurien. The species was first formally described by botanist Alex George, his description published in Nuytsia in 1974.