Steganthera australiana is a species of plant in the family Monimiaceae. It is native to New Guinea and the Wet Tropics bioregion of Queensland, Australia, where it is restricted to a small area near Cairns. It is a shrub or small tree reaching up to in height. It was first described in 1944, and in Queensland it has the conservation status of near threatened.
The plant was first described in 1944 by Australian botanist Cyril Tenison White. The type specimen was collected by White in 1941 at Garradunga, a rural area just north of Innisfail.
The genus name Steganthera is derived from the Greek words ' (stegos), meaning 'cover' or 'roof', and ' (anthera), flower. The species epithet australiana means 'from Australia'.
Steganthera australiana occurs in rainforest on the Atherton Tableland southwest of Cairns, as well as the coastal lowlands south of Cairns. The altitudinal range is from sea level to about . It also occurs in New Guinea.
This species is listed as near threatened under the Queensland Government's Nature Conservation Act. , it has not been assessed by the International Union for Conservation of Nature (IUCN).