Acacia chamaeleon is a shrub belonging to the genus Acacia and the subgenus Phyllodineae. It is native to an area along the south coast in the Great Southern, Wheatbelt and the Goldfields-Esperance regions of Western Australia. The singled stemmed, open shrub typically grows to a height of 2 to 3 metres (7 to 10 ft). It blooms from May to December and produces yellow flowers.