Xanthosia ciliata is a species of flowering plant in the family Apiaceae and is endemic to the south-west of Western Australia.

Xanthosia ciliata is a low, spreading shrub that typically grows to a height of 5–25 cm (2.0–9.8 in), its leaves linear to wedge-shaped.

The inflorescence is arranged in leaf axils or on the ends of branches and is usually a small, compound umbel with four short rays.

[2][3] Xanthosia ciliata was first formally described in 1848 by William Jackson Hooker in Icones Plantarum from specimens collected by James Drummond near the Swan River.

[6] Xanthosia ciliata grows in lateritic soils, sand or clay in the Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Jarrah Forest and Swan Coastal Plain bioregions of south-western Western Australia and is listed as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.