Bossiaea spinosa is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia.

It is a low, dense prostrate or rounded, twiggy shrub with egg-shaped to elliptic leaves and deep yellow to orange and pinkish-red, pea-like flowers.

Flowering occurs from August to October and the fruit is a flattened pod 8–16 mm (0.31–0.63 in) long.

[2][3] This species was first formally described in 1853 by Nikolai Turczaninow who gave it the name Platylobium spinosum in the Bulletin de la Société impériale des naturalistes de Moscou from specimens collected by James Drummond.

[2][3] Bossiaea spinosa is classified as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[2] meaning that it is poorly known and known from only a few locations but is not under imminent threat.