Diuris subalpina, commonly known as slender golden moths[2] is a species of orchid that is endemic to south-eastern continental Australia.

The dorsal sepal is egg-shaped, 7–10 mm (0.28–0.39 in) long and relatively small with reddish-brown streaks at the base, and an upturned tip.

[2][3] Diuris subalpina was first formally described in 2008 by David Jones in "The Orchadian" from a specimen collected in Namadgi National Park in 1996.

[4][5] The specific epithet (subalpina) means "less than high altitude", referring to the montane and subalpine habitat of this orchid.

[4] Slender golden moths are abundant in montane and subalpine areas of south-eastern New South Wales, the Australian Capital Territory and north-eastern Victoria.