Daviesia umbonata is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia.

Flowering occurs in June and July and the fruit is a shallowly triangular pod 12–14 mm (0.47–0.55 in) long.

[2][4] The specific epithet (umbonata) means "bossed" referring to bulges near the sepal lobes.

[5] This daviesia grows in kwongan north from the Wongan Hills-Manmanning area in the Avon Wheatbelt, Geraldton Sandplains and Jarrah Forest bioregions of south-western Western Australia.

[2][3] Daviesia umbonata is classified as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.