Chiloglottis sphaerula is a species of orchid endemic to a small part of New South Wales.

It has two dark green leaves and a single green to reddish pink flower with a shiny black insect-like callus covering two-thirds of the base of the labellum but with the tip of the labellum free of callus.

[2] Chiloglottis sphaerula was first formally described in 2006 by David Jones from a specimen collected in the Barrington Tops National Park and the description was published in Australian Orchid Research.

[3] The specific epithet (sphaerula) is a Latin word meaning "ball"[4] referring to the shape of the "head" of the insect-like callus.

[2][5] This orchid grows in tall, moist forest on the southern part of the Northern Tablelands and Barrington Tops National Park.