John Walker Sharpe FRSE FIP (21 October 1916 – 14 August 1997) was a 20th-century Scottish physicist specialising in the electron microscope.
He won a bursary to Glasgow University where he studied Mathematics and Natural Philosophy (Physics) graduating MA in 1939.
However these studies were interrupted by the Second World War and he instead served as Scientific Officer to the Mine Warfare Department of the Admiralty.
Here his pioneering work on electron microscopy allowed the first photographs of Trypanosoma congolense which led to the development of the cure for "sleeping sickness" in African cattle.
His proposers were Prof Donald Pack, John Meadows Jackson, Arthur F. Brown and Ian Sneddon.