Bossiaea cinerea, commonly known as showy bossiaea, is a species of flowering plant in the pea family, Fabaceae. It is a hairy-stemmed shrub growing up to 2 m in height and spread. Its triangular, stalkless leaves are alternate, opposite or whorled and 5–20 mm long. Its red and yellow pea flowers are 7–12 mm long and grow singly along the stems; the seed pods are ovate to oblong and 10–20 mm long. It is found in sandy coastal heath and sclerophyll forest habitats.