Persoonia hexagona is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia.

It is an erect, spreading shrub with branchlets that are densely hairy when young, linear, sharply pointed leaves and bright yellow, hairy flowers borne singly or in groups of up to ten on a rachis up to 40 mm (1.6 in) long.

[2][3][4][5] Persoonia hexagona was first formally described in 1994 by Peter Weston in the journal Telopea from specimens he collected north-east of Perenjori in 1980.

[4][6] This geebung usually grows in Acacia woodland and occurs from near the Murchison River to near Perenjori, in the Avon Wheatbelt, Geraldton Sandplains and Yalgoo biogeographic regions.

[3][5] This species is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.