Sir Donald Hamilton Irvine CBE (2 June 1935 – 19 November 2018) was a British general practitioner (GP) who was president of the General Medical Council (GMC) between 1995 and 2002, during a time when there were a number of high-profile medical failure cases in the UK, including the Alder Hey organs scandal, the Bristol heart scandal and The Shipman Inquiry. He transformed the culture of the GMC by setting out what patients could expect of doctors and is credited with leading significant changes in the regulation of professional medicine and introducing the policy of professional revalidation in the UK.