Acacia subcaerulea is a shrub of the genus Acacia and the subgenus Phyllodineae.

It is native to coastal areas in the Goldfields-Esperance, Great Southern and South West regions of Western Australia.

[1] The slender shrub typically grows to a height of 1 to 3 metres (3 to 10 ft).

It blooms from March to September and produces yellow flowers.