Three orchid species namely, Bulbophyllum gibbosum (Blume) Lindl., B. odoratissimum (Sm.) Lindl. ex Wall., and Dendrobium albopurpureum (Seidenf.) Schuit. & Peter B.Adams, were collected from Rangamati Hill District and have been reported here as new angiospermic records for Bangladesh flora. The detailed critical examination of the specimens of these species has been made to confirm their taxonomic identification. The present communication reports their detailed taxonomic descriptions along with flowering time, ecology, geographical distribution, illustrations, and photographs.