Grevillea tenuiflora is a shrub of the genus Grevillea native to an area in the Wheatbelt and Mid West regions of Western Australia. The low spreading shrub typically grows to a height of 0.5 to 1 metre (1.6 to 3.3 ft) and has non-glaucous branchlets. It has simple, dissected and subpinnatisect leaves with a blade that is 15 to 50 millimetres (0.59 to 1.97 in). It blooms between August and October and produces a terminal raceme irregular inflorescence with orange flowers and orange styles. Later it forms ovoid, glandular hairy, red-brown fruit that are 11 to 14 mm (0.4 to 0.6 in) long.