Eucalyptus barberi, commonly known as Barber's gum,[3] is a tree or mallee that is endemic to Tasmania.

It has mostly smooth, greyish bark, elliptic to lance-shaped or curved adult leaves, diamond-shaped or club-shaped buds in groups of seven in leaf axils, white flowers and cup-shaped, cylindrical or conical fruit.Eucalyptus barberi is a mallee growing to a height of 1–5 metres (3–16 ft) or tree that typically grows to a height of 8 metres (26 ft), and forms a lignotuber.

The leaves of young plants and on coppice regrowth are arranged in opposite pairs, lance-shaped to elliptic or oblong, 30–80 mm (1–3 in) long, 10–30 mm (0.4–1 in) wide and have a petiole.

[3][4][5] Eucalyptus barberi was first formally described in 1972 by Lawrie Johnson and Donald Blaxell from a specimen collected near Cranbrook.

[3][7] Barber's gum grows in dry forest on the edges of dolerite outcrops and on low hills and sloping ground in eastern Tasmania.