The taxon Hipposideros nicobarulae is elevated to a distinct species and an amended description is included. It is geographically restricted to the Nicobar Islands in the Andaman Sea where it has been found roosting in caves and deserted buildings. It is differentiated by size and external, cranial and dental morphology from Hipposideros ater from the Indian Subcontinent. Both taxa are distinguished from a new species, Hipposideros sp. nov., herein described from the Rakhine coast of western Myanmar, with referred material from Tanintharyi Division in southern Myanmar. In all cases, individuals were found roosting in human habitation. Information on the conservation status, distribution and ecology of the three species are included.