Sir Roy Yorke Calne, M.B., BS, MA, MS, FRCS, FRCP. is Emeritus Professor of Surgery, Cambridge University, He is also Professor of Surgery, National University of Singapore. Sir Roy Calne is considered as one of the pioneers of organ transplantation. His work in clinical science of transplantation has made important contributions to the development of immunosuppressive drugs and the use of Cyclosporins A since 1970. The development of immunosuppression to prevent organ allograft rejection has allowed the widespread use of transplantation as the therapy for end stage organ failure. Today over 30,000 transplants are performed each year.