海南钻喙兰（学名：Rhynchostylis gigantea）为兰科钻喙兰属下的一个种。

Rhynchostylis gigantea is a species of orchid. This species was first described in 1896 by John Lindley and occurs in Myanmar, Thailand, Malaysia, Laos, Cambodia, Vietnam, Hainan China, Borneo, Bangladesh and the Philippines.

Rhynchostylis differs from Vanda by the one-lobed lip. Rhynchostylis are also commonly called foxtail orchids because of their long, thin, densely packed inflorescences that get up to 37 centimetres (15 in) with sweetly fragrant blooms. The inflorescences appear in autumn and winter. Due to the wide distribution of Rhynchostylis gigantea there is a range of different clones: flowers vary slightly in shape and colour (from white to dark red, with spotted forms).