Styphelia microdonta is a species of flowering plant in the heath family Ericaceae and is endemic to the south west of Western Australia.

[2] This species was first formally described in 1868 by George Bentham who gave it the name Astroloma microdonta in Flora Australiensis from specimens collected near the Murchison River.

[2][3] In 1882 Ferdinand von Mueller transferred the species to Styphelia as S. microdonta in his Systematic Census of Australian Plants.

[4] This styphelia grows in near-coastal areas of the Avon Wheatbelt, Geraldton Sandplains and Swan Coastal Plain bioregions of south-western Western Australia.

[5] Styphelia microdonta is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.