Eucalyptus orbifolia, commonly known as round-leaved mallee,[2] is a species of flowering plant in the family Myrtaceae and is endemic to inland Australia.

The tree produces showy cream-yellow flowers predominantly between mid-winter and late spring from July to November.

[3][4] Eucalyptus orbifolia was first formally described in 1859 by Ferdinand von Mueller in Fragmenta Phytographiae Australiae from specimens collected by Charles Harper.

[5][6][7] The name is sometimes misapplied to Eucalyptus websteriana described by Joseph Maiden in 1916 in the Journal and Proceedings of the Royal Society of New South Wales.

[10] It is found amongst granite outcrops and on slopes and ridges[3] in the Mid West, Wheatbelt and Goldfields regions of Western Australia between Mount Magnet, Mukinbudin and Kalgoorlie where it grows in shallow gravelly red sandy or sandy-clay soils.