Allocasuarina humilis, commonly known as dwarf sheoak,[2] is a species of flowering plant in the family Casuarinaceae and is endemic to the south-west of Western Australia.

Allocasuarina humilis is an erect or spreading, dioecious or monoecious shrub that typically grows to a height of 0.2–2 m (7.9 in – 6 ft 6.7 in).

[2][3][4] This sheoak was first formally described in 1841 by Christoph Friedrich Otto and Albert Gottfried Dietrich, who gave it the name Casuarina humilis in their book Allgemeine Gartenzeitung.

[5][6] In 1982, Lawrie Johnson transferred it to the new genus Allocasuarina as A. humilis in the Journal of the Adelaide Botanic Gardens.

Allocasuarina humilis is found across southwest Western Australia, from the Murchison River in the north, to the south coast, where it extends eastwards to Israelite Bay.