Dienia ophrydis, commonly known as the common snout orchid[2] or 无耳沼兰 (wu er zhao lan)[3] is a plant in the orchid family and is native to endemic to a broad area of Asia, Southeast Asia, the Philippines, New Guinea and northern Australia.

[2][3][4][5][6] The common snout orchid was first formally described in 1791 by Johann Gerhard König who gave it the name Epidendrum ophrydis and published the description in Observationes botanicae :sex fasciculis comprehensae.

[9] The specific epithet (ophrydis) is derived from the Ancient Greek word ophyrs meaning "brow" or "eyebrow".

[10] Dienia ophrydis grows in wet forests, often near streams and swampy areas.

It is the most widespread species in the genus and is found in China, Cambodia, Bhutan, India, Japan, Laos, Malaysia, Myanmar, Nepal, the Philippines, Sri Lanka, Singapore, Thailand, Vietnam, New Guinea and northern Queensland.