Eucalyptus decorticans, commonly known as the gum-top ironbark,[2] is a species of tree that is endemic to Queensland.

It has rough, dark grey or black "ironbark" on the trunk and larger branches, smooth white bark on the thinner branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and conical, cup-shaped or barrel-shaped fruit.

[2][3] Gum-top ironbark was first formally described in 1911 by Frederick Manson Bailey from a specimen collected near Eidsvold by Thomas Lane Bancroft.

Bailey gave it the name Eucalyptus siderophloia f. decorticans and published the description in the Queensland Agricultural Journal.

[2] Eucalyptus decorticans grows in open forest on hills and hillsides in stony clay soils.