Sian Harding is Professor of Cardiac Pharmacology at the National Heart and Lung Institute, Imperial College London, and Director of the Imperial Cardiac Regenerative Medicine Centre.

She obtained her Ph.D. in Pharmacology from King's College, London in 1981, and since then the primary focus of her work has been cardiomyocyte function in the failing heart. This has extended to gene therapy to modulate cardiomyocyte function, and she was Scientific PI for the UK's first clinical trial on myocardial gene therapy. More recently the scope has extended to the characterisation of cardiomyocytes derived from embryonic stem cells, and their use in cardiac repair, tissue engineering and drug discovery.