Edmonstone is a surname. Notable people with the surname include:
Alice Keppel (née Edmonstone; 1868–1947), British aristocrat and hostess Archibald Edmonstone (disambiguation), multiple people Charles Edmonstone (1764–1821), Scottish politician George Frederick Edmonstone (1813–1864), British administrator in India James Edmonstone (c. 1720–1793), Scottish army officer and agriculturalist John Edmonstone, British taxidermist John Edmonstone of that Ilk (died c. 1410), Scottish nobleman Malcolm Edmonstone (born 1980), British jazz pianist and pop arranger Neil B. Edmonstone (1765–1841), British civil servant Robert Edmonstone (1794–1834), Scottish artist William Edmonstone (1810–1888), Scottish naval commander, courtier and politician
See also Clan Edmonstone Edmonstone baronets