Agonis baxteri is a species of flowering plant in the family Myrtaceae and is endemic to the southwest of Western Australia.

It is an erect, sometimes bushy shrub with elliptic to egg-shaped leaves with the narrower end towards the base, and usually white flowers with 23 to 32 stamens.

Agonis baxteri is an upright, often spindly shrub that typically grows to a height of up to 2 m (6 ft 7 in), its branchlets usually glabrous.

[8] Agonis baxteri is found on sandplains, dunes, swamps, stony hills, disturbed and disturbed areas along the south coast in the Goldfields-Esperance region of Western Australia in the Esperance Plains and Mallee IBRA bioregions where it grows in sand and loam over quartzite, limestone or granite.

[4] This species is classified as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.