Acacia kempeana (Acacia or ακακία (akakia) from the Greek word Akis for thorn and kempeana after Pastor Kempe, co-founder of Lutheran Mission at Hermannburg-Ntaria in 1877), commonly known as wanderrie wattle, witchetty bush[1] or granite wattle, is a shrub in subfamily Mimosoideae of family Fabaceae that is endemic to arid parts of central and western Australia.

[1] The flowers between January or April and September[2] are yellow, and held in cylindrical clusters 1 to 2 cm (0.39 to 0.79 in) in length.

The species was first formally described by the botanist Ferdinand von Mueller in 1882 as part of the work Remarks on Australian Acacias as published in the Australasian Chemist and Druggist.

It was reclassified as Racosperma kempeanum in 1987 by Leslie Pedley then transferred back to the genus Acacia in 2006.

It is a hardy species in dry and low maintenance areas, well noted for being both drought and frost tolerant.