Ptilotus andersonii is a species of flowering plant in the family Amaranthaceae and is endemic to a restricted area of Western Australia.

[2][3] Ptilotus andersonii was first formally described in 2015 by Robert Davis in the journal Nuytsia from specimens collected on Burnerbinmah Station in 1996.

[2][4] The specific epithet (andersonii) honours Don Anderson, the owner, later caretaker of Burnerbinmah Station who collected the type specimen.

[2][3] Ptilotus andersonii is only known from the type specimen, in the Yalgoo bioregion of Western Australia, where it grows in open woodland on loamy soils.

[2][3] This species of Ptilotus is listed as "Priority One" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, meaning that it is known from only one or a few locations where it is potentially at risk.