Sir William Blizard FRS FRSE PRCS FSA (1 March 1743 – 27 August 1835) was an English surgeon.

[1] He was born in Barn Elms, Surrey, the fourth child of auctioneer William Blizard.

After an apprenticeship to a surgeon and apothecary in Mortlake he went to study at the London Hospital where he was a pupil of Sir Percivall Pott and John Hunter.

[2] In 1780 he was appointed surgeon, and in 1785 founded with Dr McLaurin the medical school there, largely at his own expense.

He worked for twenty years as a lecturer on surgery and anatomy at the Royal College of Surgeons and was their president twice (1814 and 1822) and Hunterian Orator three times (1813, 1823, and 1828).