Bulbophyllum gravidum is a species of epiphytic plant in the family Orchidaceae that is found in Equatorial Guinea and Cameroon (Bioko and Mount Cameroon, respectively). Its natural habitats are in montane, subtropical or tropical dry forests, at elevations of about 1,500 meters. The Mount Cameroon habitat, in particular, is threatened by the clearing of forest for the purpose of cocoyam (Colocasia esculenta) farming.