Stephen Nicholas Cluley Bolsin is a British anaesthetist whose actions as a whistleblower exposed incompetent paediatric cardiac surgery at the Bristol Royal Infirmary leading to the implementation of clinical governance reforms in the United Kingdom.

Clinical governance is a systematic approach to maintaining and improving the quality of patient care within the National Health Service (NHS) and private sector health care. Clinical governance became important in health care after the Bristol heart scandal in 1995, during which an anaesthetist, Dr Stephen Bolsin, exposed the high mortality rate for paediatric cardiac surgery at the Bristol Royal Infirmary. It was originally elaborated within the United Kingdom National Health Service (NHS), and its most widely cited formal definition describes it as:A framework through which NHS organisations are accountable for continually improving the quality of their services and safeguarding high standards of care by creating an environment in which excellence in clinical care will flourish.