Davy is the surname of:
- Edmund Davy (1785–1857), British chemist and academic
- Edward Davy (1806–1885), British physician and researcher
- Georges Davy (1883–1976), French sociologist
- Humphry Davy (1778–1829), British chemist
- John Davy (disambiguation)
- Richard Davy (c. 1465–1507), Renaissance composer, organist and choirmaster
- Steve Davy, British bass guitarist
- Thomas Davy (cyclist) (born 1968), French former cyclist
- Thomas Davy (politician) (1890–1933), Attorney-General and Minister for Education for Western Australia
- William Davy (divine) (1743–1826), English priest and writer
- William Davy (lawyer) (died 1780), English barrister
- William Gabriel Davy (1780-1856), British Army general who fought in the Peninsular War
- Davy (Surrey cricketer) (first name unknown), English cricketer who played in 1787–1788
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