Grevillea coccinea, commonly known as the scarlet grevillea, is a shrub of the genus Grevillea native to an area along the south coast of the Great Southern and Goldfields-Esperance regions of Western Australia. G. coccinea is often found among medium size trees or in tall shrubland and in heathland. It can grow in loam, sand or gravelly soils in areas of granite, laterite or quartzite. There are two recognised subspecies: \n* Grevillea coccinea subsp. coccinea \n* Grevillea coccinea subsp. 'lanata