Eucalyptus dealbata, known as the tumbledown red gum or hill redgum,[2] is a species of small tree that is endemic to eastern Australia.

It has mostly smooth, white to grey or brownish bark, lance-shaped to egg-shaped adult leaves, flower buds in groups of between seven and eleven, white flowers and hemispherical fruit with the valves extended well beyond the rim of the fruit.Eucalyptus dealbata is a tree that typically grows to a height of 15–20 m (49–66 ft) and forms a lignotuber.

[2][3][4] Eucalyptus dealbata was first formally described in a manuscript by Allan Cunningham but the description was published in 1843 by Johannes Schauer in Walper's book Repertorium Botanices Systematicae.

[5][6] The specific epithet (dealbata) is a Latin word meaning "whitened"[7] referring to the glaucous flower buds and fruit.

[3][4][8] This eucalypt is a major source of pollen and the honey produced from it is pleasantly flavoured.