Grevillea gariwerdensis is a species of flowering plant in the family Proteaceae and is endemic to Grampians National Park in Victoria, Australia.

It is a shrub with more or less linear to narrowly oblong leaves, and white to pink flowers with brownish hairs.

Flowering occurs from October to January and the fruit is a narrowly oval follicle 9–10 mm (0.35–0.39 in) long.

[3] Grevillea gariwerdensis was first formally described in 2000 by Robert Owen Makinson in the Flora of Australia from specimens collected near Halls Gap by Alexander Clifford Beauglehole in 1966.

[4] The species occurs on sandy soils in low moist heaths within Grampians National Park.