Dr Siân Griffin is a Consultant Nephrologist in Cardiff and Honorary Senior Lecturer at Cardiff University. She is the General Secretary of the British Transplantation Society and Chair of the UK Renal Research Consortium Transplantation Clinical Study Group. She is a former Medical Research Council Clinical Training Fellow (PhD immunology, Cambridge University), American Heart Association post-doctoral fellow (University of Washington, Seattle) and Clinical Research Time Award recipient (2016 – 2019).