Le Mesurier, LeMesurier, Lemesurier, Le Masurier and Le Messurier are variant spellings of a surname originating in the Channel Islands. Notable people with the name include:
Alfred Le Messurier (1856–1927), shipping agent in Port Adelaide, South Australia David Hugh Le Messurier (1912–1976), Australian medical researcher Frederick Neill Le Messurier (1891–1966), Australian military doctor and pediatrician Gerald Le Mesurier (1914–1943), South African flying ace of World War II Henry LeMessurier (1848–1931), Newfoundland civil servant and politician James Le Mesurier (1971–2019), British army officer and co-founder of the White Helmets Joan Le Mesurier (1932–2021), English actress John Le Masurier (1917–2014), British athletics coach John Le Mesurier (1912–1983), English actor John Le Mesurier (born 1933/34), English carpet salesman and alleged conspirator in the Thorpe affair John Le Mesurier (Alderney) (1781–1843), last hereditary governor of Alderney, Channel Islands John Lemesurier (1826–1891), Canadian politician Kathleen Le Messurier (1898–1981), Australian tennis player Nicolas Le Messurier (fl. 1960s), British sound engineer Paul Le Mesurier (1755 – 9 December 1805), British merchant, politician and Lord Mayor of London Robert Le Masurier (1913–1996), Bailiff of Jersey, Channel Islands Robin Le Mesurier (1953–2021), British guitarist Alfred Roy Le Messurier (1886–1946), Australian rules footballer and timber merchant Thomas Le Mesurier (priest, born 1756) (1756–1822), British lawyer, cleric and polemicist Thomas Le Mesurier (priest, born 1785) (1785–1864), Anglican priest, Archdeacon of Malta Thomas Le Mesurier (aviator) (1897–1918), British World War I flying ace William LeMessurier (1926–2007), American structural engineer