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

It is a much-branched, spreading shrub with spiny branchlets, small bipinnate leaves, light golden flowers arranged in spherical heads of 10 to 20, and wavy or coiled pods up to 15 mm (0.59 in) long.

Acacia amputata is a much-branched, spreading shrub that typically grows to a height of 30–60 cm (12–24 in) and often has pinkish-brown branches, the branchlets spiny.

[8][9] The specific epithet (amputata) means 'to cut away, lop off, or shorten', referring to the short peduncles.

[9] This species of Acacia grows in loan and sand in shrubland between Brookton, Narrogin, Frank Hann National Park and Boxwood Hill in the Avon Wheatbelt, Esperance Plains, Jarrah Forest and Mallee bioregions of south-western Western Australia.