Eucalyptus baeuerlenii, commonly known as Baeuerlen's gum,[3] is a mallee, sometimes a tree, that is endemic to New South Wales.

It has smooth bark throughout, lance-shaped to curved adult leaves, oblong to spindle-shaped buds in groups of three in leaf axils, white flowers and bell-shaped, cup-shaped or conical fruit.

[3][4][5] Eucalyptus baeuerlenii was first formally described in 1890 by Ferdinand von Mueller who published the description in The Victorian Naturalist.

Baeuerlen noted "I am always a bit shy about sending you Eucalyptus specimens, but I think that this present one will not waste your time unnecessarily."

[8] The specific epithet (baeuerlenii) honours William Baeuerlen who collected for Mueller from 1883 until at least 1888.