Acacia crispula is a shrub belonging to the genus Acacia and the subgenus Phyllodineae. It is native to an area along the south coast in the Goldfields-Esperance and Great Southern regions of Western Australia. The dense low spreading shrub typically grows to a height of 0.1 to 0.3 metres (0.33 to 0.98 ft) and 0.3 to 1.5 metres (0.98 to 4.9 ft) wide. It blooms from September to December and produces cream-yellow flowers.