John Le Mesurier may refer to:
John Le Mesurier (Alderney) (1781–1843), last hereditary governor of Alderney John Lemesurier (1826–1891), Canadian politician who served as mayor of Quebec City John Le Mesurier (British Army officer), (1834-1903) John Le Mesurier (1912–1983), English actor John Le Mesurier (b. 1933/34), English carpet salesman and alleged conspirator in the Thorpe affair
See also John Le Masurier, British athletics coach