Sir John Charles Nicholson, 3rd Baronet, (10 January 1904 – 16 March 1986)[1] was an English surgeon. Born in Surrey, and educated at Brighton College and New College, Oxford, he qualified as a surgeon in 1929 and won the Willet Medal for excellence in operative surgery. He was appointed as the house surgeon to many London hospitals, including St Bartholomew's Hospital, where he later became a demonstrator in physiology and pharmacology. Later, he was appointed the surgical registrar to the London Lock, the National Temperance and Royal National Orthopaedic hospitals. From 1950 he was a surgeon at the Bethnal Green, and St Leonard's and St Matthew's Hospitals in East London. He retired to Sunbury-on-Thames in 1969 and died in 1986.