John Beresford Leathes

John Beresford Leathes
Leathes in 1910.
Professor of Physiology, University of Sheffield
In office
1915–1933
Professor of Pathological Chemistry, University of Toronto
In office
1909–1914
Personal details
Born5 November 1864
London, England
Died14 September 1956(1956-09-14) (aged 91)
Montreux, Switzerland

John Beresford Leathes (5 November 1864 – 14 September 1956) was a British physiologist and an early biochemist. He was the son of Hebrew scholar Stanley Leathes, and the brother of the poet, historian and First Civil Service Commissioner Sir Stanley Mordaunt Leathes.