Eucalyptus canaliculata, commonly known as grey gum,[3] is a tree endemic to a small area in New South Wales in eastern Australia.

It has smooth, mostly grey bark, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and conical or hemispherical fruit.Eucalyptus canaliculata is a tree that typically grows to a height of 30 metres (98 ft) and forms a lignotuber.

[3][4][5] Eucalyptus canaliculata was first formally described in 1921 by Joseph Maiden from a specimen near Dungog and the description was published in the Journal and Proceedings of the Royal Society of New South Wales.

[6][7] The specific epithet (canaliculatum) is a Latin word meaning "grooved",[8] but the reason Maiden used this name is obscure.

[3] Grey gum usually grows open forest in sites of medium to low fertility such as on dry ridge tops.