Hellenia is a genus of plants in the Costaceae described as a genus with this name in 1791. It is native to Southeast Asia, southern China, the Indian subcontinent, New Guinea, and Queensland. The type species was "H. grandiflora" Retz., which is a synonym of Hellenia speciosa.

Plants of the World Online currently includes the following (with some botanists preferring to retain the genus Cheilocostus):

now in other genera: Alpinia, Hornstedtia, Parahellenia, Plagiostachys