Thryptomene wittweri is a shrub species in the family Myrtaceae that is endemic to Western Australia. The spreading to rounded shrub typically grows to a height of 0.5 to 1.5 metres (2 to 5 ft). It blooms between April and August producing white-cream flowers. It is found on breakaways and creek beds in the Gascoyne and Pilbara regions of Western Australia where it grows in skeletal stony soils.