Eucalyptus melanoxylon, commonly known as black morrell,[2] is a species of small to medium-sized tree that is endemic to Western Australia.

Eucalyptus melanoxylon is a tree that typically grows to a height of 4–24 m (13–79 ft), sometimes a robust mallee, and forms a lignotuber.

[5][6] The specific epithet (melanoxylon) means "black wood", alluding to the very dark colour of the timber.

[2][3][4] This eucalypt is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.

[2] The heartwood of this species is a dark brown colour with visible growth rings.