Air Chief Marshal Sir William Geoffrey Hanson Salmond KCB, KCMG, DSO (19 August 1878 – 27 April 1933), commonly known as Sir Geoffrey Salmond, was a senior commander in the Royal Flying Corps during World War I. Remaining in the Royal Air Force after the War, he held senior appointments in the Middle East, Great Britain and India. In 1933 Salmond served as Chief of the Air Staff for only a matter of days before being taken ill and subsequently dying from cancer.