嘉兰（学名：Gloriosa superba）为百合科嘉兰属下的一个种。

Gloriosa superba is a species of flowering plant in the family Colchicaceae. English language common names include flame lily, climbing lily, creeping lily, glory lily, gloriosa lily, tiger claw, and fire lily. Names in other languages include kalihari (Hindi), agni shikha or potti naabhi (Telugu), kaanthal (Tamil), ulotchondal (Bengali), lis de Malabar (French), aranha de emposse (Portuguese), bandera española [Spanish flag] (Spanish), mkalamu (Swahili), klänglilja (Swedish), riri (Māori), and jia lan (Chinese). It is native to much of Africa and Asia, but it is known worldwide as an ornamental plant, a medicine, a poison, and a noxious weed.