火焰兰属（学名：Renanthera）是兰科下的一个属，为附生兰或陆生兰。该属共有13种，分布于东南亚。

Renanthera, abbreviated as Ren in horticultural trade, is a genus of large scrambling monopodial epiphytic and terrestrial species of orchid found in China, the Himalayas, Southeast Asia, New Guinea, and Melanesia.

Species in this genus produce a branched inflorescence containing numerous flowers ranging in color from yellow and orange to red. These flowers possess large lateral sepals.