RHD may refer to: RHD (gene), a gene which determines RhD positive or negative RhD haemolytic disease of the newborn Rh(D), an antigen within the Rhesus blood group system FAP 403 RHD, a coach bus model manufactured by Fabrika automobila Priboj Rabbit haemorrhagic disease, a disease caused by the Rabbit haemorrhagic disease virus Red Hand Defenders, an illegal paramilitary organisation in Northern Ireland Rheumatic Heart Disease, a possible result of Rheumatic fever Right hemisphere brain damage Right-hand drive, where a car's steering wheel is mounted on the right side, see Left- and right-hand traffic Robbery Homicide Division, an American TV series Random House Dictionary of the English Language Roads and Highways Department, a government organization of Bangladesh