Amyema thalassia is a species of mistletoe in the family Loranthaceae[1][2] native to Western Australia and the Northern Territory.

[3] It was first described in 1962 by Bryan Alwyn Barlow.

[1][2] The leaves are rounded and fleshy, with an obtuse base, a blunt apex and a winged petiole.

[3] The corolla is four-winged, and red at the base and green at the apex.

[3] There are four stamens.