Leucopogon tenuis is a species of flowering plant in the heath family Ericaceae and is endemic to the southwest of Western Australia.

Leucopogon tenuis is an erect, glabrous shrub that typically grows to a height of 25–70 cm (9.8–27.6 in) and has slender, wand-like branches.

The flowers are arranged in cylindrical, many-flowered spikes on the ends of branches with lance-shaped, leaf-like bracts and bracteoles less than half as long as the sepals.

[2][3] Leucopogon tenuis was first formally described in 1839 by Augustin Pyramus de Candolle in his Prodromus Systematis Naturalis Regni Vegetabilis from specimens collected by James Drummond in the Swan River Colony.

[6] This leucopogon grows on ridges, in swamps and on flats in the Jarrah Forest, Swan Coastal Plain and Warren bioregions in the south-west of Western Australia.