Gabriel Oniscu is a consultant transplant surgeon at the Royal Infirmary of Edinburgh and Honorary Reader at the University of Edinburgh. He is the Director of the Edinburgh Transplant Centre and is involved in liver, kidney and pancreas transplantation.

His research activity has a particular focus on access to transplantation and transplant outcomes, organ perfusion and reconditioning and optical sensing. He is the recipient of the NRS Career Research Fellowship and an MRC confidence in concept award for technological developments relating to normothermic perfusion. Mr. Oniscu is Secretary of the European Society for Organ Transplantation and Transplant Advisor to the Chief Medical Officer in Scotland.