Acacia anceps, commonly known as Port Lincoln wattle[2] or the two edged wattle,[3] is a species of flowering plant in the family Fabaceae and is endemic to coastal areas of south-western Australia.

It is a bushy, spreading shrub with glabrous branchlets angled at the ends, elliptic to lance-shaped phyllodes with the narrower end towards the base, spherical heads of 50 to 130 golden-yellow flowers, and narrowly oblong pods up to 60 mm (2.4 in) long.

The inflorescences are arranged singly in leaf axils in heads of 50 to 130 golden-yellow flowers on a stout, glabrous peduncle mostly 10–26 mm (0.39–1.02 in) long.

[3][4][5][6] Acacia anceps was first formally described in 1825 by Augustin Pyramus de Candolle in his Prodromus Systematis Naturalis Regni Vegetabilis.

[7][8] The specific epithet (anceps) means 'two-sided' referring to the flattened stems.