Platanthera stenochila is a species of flowering plant in the family Orchidaceae, native from east Nepal through the eastern Himalayas of India to south-central China (north-west Yunnan).

[1] The species was first described in 1896, as Herminium angustilabre.

A molecular phylogenetic study in 2014 found that it was deeply embedded in a clade of Platanthera species, and so transferred it to that genus as Platanthera angustilabris (King & Pantl.)

[2] However, this name had already been used for a different species, Platanthera angustilabris Seidenf., so was an illegitimate name.

In 2015, an acceptable replacement name, Platanthera stenochila, was published.