双唇兰属（学名：Didymoplexis）是兰科下的一个属，为腐生兰。该属共有约20种，分布于非洲和亚洲热带地区。

Didymoplexis is a genus of 17 species of leafless, achlorophyllous orchids, native to Africa, Madagascar, Southeast Asia, Australia and various islands of the Pacific. Their rhizomes have aerial roots. Flowers are solitary, resupinate, and arranged into terminal or subterminal raceme. In particular, one dorsal sepal is fused with the petals forming a hoodlike structure.