Family members by birth
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- Peter de Havilland (1747–1821), Bailiff of Guernsey and great-grandfather of Walter
- Thomas de Havilland (1775–1866), army officer and son of Sir Peter
- Walter de Havilland (1872–1968), British patent attorney and Go player, half-uncle of Sir Geoffrey
- Geoffrey de Havilland (1882–1965), founder of the aircraft company
- Hereward de Havilland (1894–1976), British aviator, brother of Sir Geoffrey
- Geoffrey de Havilland Jr. (1910–1946), test pilot, son of Sir Geoffrey
- Olivia de Havilland (1916–2020), British-American actress, daughter of Walter and sister of Joan
- Joan de Beauvoir de Havilland, known as Joan Fontaine (1917–2013), British-American actress, daughter of Walter and sister of Olivia
- John de Havilland (1918–1943), test pilot, son of Sir Geoffrey
- Will de Havilland (born 1994), English professional footballer
Family members by marriage
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- ^ Sir Bernard Burke, Genealogical and Heraldic History of the Landed Gentry of Great Britain and Ireland, vol. 1 (1882), De Havilland of Havilland Hall.