Prasophyllum wilkinsoniorum is a species of orchid endemic to New South Wales.

It grows in grassy places in a restricted area on the Southern Tablelands.

Prasophyllum wilkinsoniorum is a terrestrial, perennial, deciduous, herb with an underground tuber and a single bright green, tube-shaped leaf, 300–400 mm (10–20 in) long with a white to reddish base.

[2] Prasophyllum wilkinsoniorum was first formally described in 2000 by David Jones from a specimen collected near Tantawangalo and the description was published in The Orchadian.

[1] This leek orchid grows between Cathcart and Tantawangalo, usually in grassy flat areas.