Prasophyllum solstitium is a species of orchid endemic to the Northern Tablelands of New South Wales.

It grows in grassland on heavy basalt soil.Prasophyllum solstitium is a terrestrial, perennial, deciduous, herb with an underground tuber and a single tube-shaped, bright green leaf 150–400 mm (6–20 in) long with a purplish base.

The edges of the labellum are flared and wavy near the tip and there is a fleshy green callus near its centre.

[2] Prasophyllum solstitium was first formally described in 2000 by David Jones from a specimen collected near the road between Guyra and Ebor and the description was published in The Orchadian.

[1] This leek orchid grows in grassland on heavy, black basaltic soil on the New England Tableland.